/**
 * SRSS Technology Services Ltd - Main Stylesheet
 * A modern, professional, mobile-first CSS framework
 * 
 * Table of Contents:
 * 1. CSS Variables & Root
 * 2. Reset & Base Styles
 * 3. Typography
 * 4. Layout & Container
 * 5. Buttons
 * 6. Header & Navigation
 * 7. Hero Section
 * 8. Sections & Components
 * 9. Services Section
 * 10. Why Choose Us Section
 * 11. Product Highlight Section
 * 12. CTA Section
 * 13. Footer
 * 14. Floating Elements
 * 15. Utilities
 * 16. Animations
 * 17. Media Queries
 */

/* ========================================
   1. CSS Variables & Root
======================================== */
:root {
    /* Primary Colors - Deep Blue Corporate Theme */
    --color-primary: #0A2647;
    --color-primary-light: #144272;
    --color-primary-dark: #051630;
    --color-primary-rgb: 10, 38, 71;
    
    /* Secondary Colors */
    --color-secondary: #205295;
    --color-secondary-light: #2C74B3;
    
    /* Accent Colors */
    --color-accent: #00A8E8;
    --color-accent-light: #00D4FF;
    --color-accent-dark: #0077B6;
    
    /* Neutral Colors */
    --color-white: #FFFFFF;
    --color-gray-50: #F9FAFB;
    --color-gray-100: #F3F4F6;
    --color-gray-200: #E5E7EB;
    --color-gray-300: #D1D5DB;
    --color-gray-400: #9CA3AF;
    --color-gray-500: #6B7280;
    --color-gray-600: #4B5563;
    --color-gray-700: #374151;
    --color-gray-800: #1F2937;
    --color-gray-900: #111827;
    
    /* Semantic Colors */
    --color-success: #10B981;
    --color-warning: #F59E0B;
    --color-error: #EF4444;
    --color-info: #3B82F6;
    
    /* WhatsApp Color */
    --color-whatsapp: #25D366;
    
    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-heading: 'Poppins', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    
    /* Font Sizes */
    --text-xs: 0.75rem;
    --text-sm: 0.875rem;
    --text-base: 1rem;
    --text-lg: 1.125rem;
    --text-xl: 1.25rem;
    --text-2xl: 1.5rem;
    --text-3xl: 1.875rem;
    --text-4xl: 2.25rem;
    --text-5xl: 3rem;
    --text-6xl: 3.75rem;
    
    /* Font Weights */
    --font-light: 300;
    --font-regular: 400;
    --font-medium: 500;
    --font-semibold: 600;
    --font-bold: 700;
    --font-extrabold: 800;
    
    /* Line Heights */
    --leading-tight: 1.25;
    --leading-snug: 1.375;
    --leading-normal: 1.5;
    --leading-relaxed: 1.625;
    --leading-loose: 2;
    
    /* Spacing */
    --spacing-1: 0.25rem;
    --spacing-2: 0.5rem;
    --spacing-3: 0.75rem;
    --spacing-4: 1rem;
    --spacing-5: 1.25rem;
    --spacing-6: 1.5rem;
    --spacing-8: 2rem;
    --spacing-10: 2.5rem;
    --spacing-12: 3rem;
    --spacing-16: 4rem;
    --spacing-20: 5rem;
    --spacing-24: 6rem;
    
    /* Border Radius */
    --radius-sm: 0.25rem;
    --radius-md: 0.375rem;
    --radius-lg: 0.5rem;
    --radius-xl: 0.75rem;
    --radius-2xl: 1rem;
    --radius-3xl: 1.5rem;
    --radius-full: 9999px;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    --shadow-inner: inset 0 2px 4px 0 rgba(0, 0, 0, 0.06);
    
    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 250ms ease;
    --transition-slow: 350ms ease;
    --transition-slower: 500ms ease;
    
    /* Z-Index */
    --z-dropdown: 1000;
    --z-sticky: 1020;
    --z-fixed: 1030;
    --z-modal-backdrop: 1040;
    --z-modal: 1050;
    --z-popover: 1060;
    --z-tooltip: 1070;
    
    /* Container */
    --container-max: 1280px;
    --container-padding: 1rem;
    
    /* Header */
    --header-height: 80px;
}

/* ========================================
   2. Reset & Base Styles
======================================== */
*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: var(--font-primary);
    font-size: var(--text-base);
    font-weight: var(--font-regular);
    line-height: var(--leading-normal);
    color: var(--color-gray-700);
    background-color: var(--color-white);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

/* Focus styles for accessibility */
:focus-visible {
    outline: 2px solid var(--color-accent);
    outline-offset: 2px;
}

/* Skip link for accessibility */
.skip-link {
    position: absolute;
    top: -100%;
    left: 50%;
    transform: translateX(-50%);
    background: var(--color-primary);
    color: var(--color-white);
    padding: var(--spacing-3) var(--spacing-6);
    border-radius: var(--radius-md);
    z-index: var(--z-tooltip);
    transition: top var(--transition-fast);
}

.skip-link:focus {
    top: var(--spacing-4);
}

/* Selection */
::selection {
    background-color: var(--color-primary);
    color: var(--color-white);
}

/* ========================================
   3. Typography
======================================== */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: var(--font-bold);
    line-height: var(--leading-tight);
    color: var(--color-gray-900);
}

h1 { font-size: clamp(2.5rem, 5vw, var(--text-6xl)); }
h2 { font-size: clamp(2rem, 4vw, var(--text-4xl)); }
h3 { font-size: clamp(1.5rem, 3vw, var(--text-2xl)); }
h4 { font-size: var(--text-xl); }
h5 { font-size: var(--text-lg); }
h6 { font-size: var(--text-base); }

p {
    margin-bottom: var(--spacing-4);
}

a {
    color: var(--color-primary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--color-accent);
}

ul, ol {
    list-style: none;
}

img, svg {
    display: block;
    max-width: 100%;
    height: auto;
}

/* ========================================
   4. Layout & Container
======================================== */
.container {
    width: 100%;
    max-width: var(--container-max);
    margin: 0 auto;
    padding-left: var(--container-padding);
    padding-right: var(--container-padding);
}

@media (min-width: 640px) {
    .container {
        --container-padding: 1.5rem;
    }
}

@media (min-width: 1024px) {
    .container {
        --container-padding: 2rem;
    }
}

.section {
    padding: var(--spacing-16) 0;
}

@media (min-width: 768px) {
    .section {
        padding: var(--spacing-20) 0;
    }
}

@media (min-width: 1024px) {
    .section {
        padding: var(--spacing-24) 0;
    }
}

.section-alt {
    background-color: var(--color-gray-50);
}

.section-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto var(--spacing-12);
}

.section-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-2);
    padding: var(--spacing-2) var(--spacing-4);
    background: linear-gradient(135deg, rgba(var(--color-primary-rgb), 0.1), rgba(var(--color-primary-rgb), 0.05));
    color: var(--color-primary);
    font-size: var(--text-sm);
    font-weight: var(--font-semibold);
    border-radius: var(--radius-full);
    margin-bottom: var(--spacing-4);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.section-title {
    margin-bottom: var(--spacing-4);
}

.section-description {
    color: var(--color-gray-600);
    font-size: var(--text-lg);
    margin-bottom: 0;
}

/* ========================================
   5. Buttons
======================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-2);
    padding: var(--spacing-3) var(--spacing-6);
    font-family: var(--font-primary);
    font-size: var(--text-sm);
    font-weight: var(--font-semibold);
    line-height: 1;
    text-align: center;
    text-decoration: none;
    border: 2px solid transparent;
    border-radius: var(--radius-lg);
    cursor: pointer;
    transition: all var(--transition-base);
    white-space: nowrap;
}

.btn:focus-visible {
    outline: 2px solid var(--color-accent);
    outline-offset: 2px;
}

.btn-icon {
    width: 18px;
    height: 18px;
    transition: transform var(--transition-fast);
}

.btn:hover .btn-icon {
    transform: translateX(4px);
}

/* Button Sizes */
.btn-sm {
    padding: var(--spacing-2) var(--spacing-4);
    font-size: var(--text-xs);
}

.btn-lg {
    padding: var(--spacing-4) var(--spacing-8);
    font-size: var(--text-base);
}

/* Primary Button */
.btn-primary {
    background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
    color: var(--color-white);
    border-color: var(--color-primary);
    box-shadow: 0 4px 14px 0 rgba(var(--color-primary-rgb), 0.3);
}

.btn-primary:hover {
    background: linear-gradient(135deg, var(--color-primary-light), var(--color-secondary));
    border-color: var(--color-primary-light);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px 0 rgba(var(--color-primary-rgb), 0.4);
    color: var(--color-white);
}

/* Outline Button */
.btn-outline {
    background: transparent;
    color: var(--color-primary);
    border-color: var(--color-primary);
}

.btn-outline:hover {
    background: var(--color-primary);
    color: var(--color-white);
}

/* White Button */
.btn-white {
    background: var(--color-white);
    color: var(--color-primary);
    border-color: var(--color-white);
}

.btn-white:hover {
    background: var(--color-gray-100);
    color: var(--color-primary);
    transform: translateY(-2px);
}

/* Outline White Button */
.btn-outline-white {
    background: transparent;
    color: var(--color-white);
    border-color: rgba(255, 255, 255, 0.5);
}

.btn-outline-white:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: var(--color-white);
    color: var(--color-white);
}

/* ========================================
   6. Header & Navigation
======================================== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--header-height);
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    z-index: var(--z-fixed);
    transition: all var(--transition-base);
}

.header > .container {
    height: 100%;
}

.header.scrolled {
    box-shadow: var(--shadow-md);
    height: 70px;
}

.navbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
}

/* Logo */
.logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
    text-decoration: none;
    color: var(--color-primary);
}

.logo-img {
    height: 50px;
    width: auto;
    object-fit: contain;
}

@media (min-width: 768px) {
    .logo-img {
        height: 60px;
    }
}

.logo-icon {
    width: 40px;
    height: 40px;
    color: var(--color-primary);
}

.logo-text {
    display: flex;
    flex-direction: column;
}

.logo-name {
    font-family: var(--font-heading);
    font-size: var(--text-xl);
    font-weight: var(--font-extrabold);
    line-height: 1;
    color: var(--color-primary);
}

.logo-tagline {
    font-size: var(--text-xs);
    color: var(--color-gray-500);
    letter-spacing: 0.02em;
}

/* Navigation Menu */
.nav-menu {
    display: none;
    list-style: none;
    margin: 0;
    padding: 0;
    align-items: center;
    gap: var(--spacing-1);
}

@media (min-width: 1024px) {
    .nav-menu {
        display: flex;
    }
}

.nav-item {
    list-style: none;
}

.nav-link {
    position: relative;
    display: block;
    padding: var(--spacing-2) var(--spacing-4);
    font-size: var(--text-sm);
    font-weight: var(--font-medium);
    color: var(--color-gray-700);
    text-decoration: none;
    transition: color var(--transition-fast);
}

.nav-link:hover,
.nav-link.active {
    color: var(--color-primary);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 2px;
    background: var(--color-primary);
    transition: all var(--transition-fast);
    transform: translateX(-50%);
}

.nav-link:hover::after,
.nav-link.active::after {
    width: calc(100% - var(--spacing-8));
}

/* Nav CTA */
.nav-cta {
    display: none;
}

@media (min-width: 1024px) {
    .nav-cta {
        display: inline-flex;
        margin-left: var(--spacing-4);
    }
}

/* Mobile Toggle */
.nav-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    padding: 0;
    background: transparent;
    border: none;
    cursor: pointer;
}

@media (min-width: 1024px) {
    .nav-toggle {
        display: none;
    }
}

.hamburger {
    position: relative;
    width: 24px;
    height: 2px;
    background: var(--color-gray-700);
    border-radius: 2px;
    transition: background var(--transition-fast);
}

.hamburger::before,
.hamburger::after {
    content: '';
    position: absolute;
    left: 0;
    width: 24px;
    height: 2px;
    background: var(--color-gray-700);
    border-radius: 2px;
    transition: all var(--transition-fast);
}

.hamburger::before {
    top: -7px;
}

.hamburger::after {
    bottom: -7px;
}

/* Mobile Menu Open State */
.nav-toggle[aria-expanded="true"] .hamburger {
    background: transparent;
}

.nav-toggle[aria-expanded="true"] .hamburger::before {
    top: 0;
    transform: rotate(45deg);
}

.nav-toggle[aria-expanded="true"] .hamburger::after {
    bottom: 0;
    transform: rotate(-45deg);
}

/* Mobile Navigation */
@media (max-width: 1023px) {
    .nav-menu {
        display: flex;
        position: fixed;
        top: 70px;
        left: 0;
        right: 0;
        height: auto;
        min-height: auto;
        max-height: calc(100vh - 70px);
        flex-direction: column;
        align-items: stretch;
        gap: 0;
        padding: var(--spacing-4);
        background: var(--color-white);
        opacity: 0;
        visibility: hidden;
        pointer-events: none;
        transform: translateY(-10px);
        transition: all var(--transition-base);
        z-index: 9999;
        overflow-y: auto;
        box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
        border-top: 1px solid var(--color-gray-200);
    }
    
    .nav-menu.active {
        opacity: 1;
        visibility: visible;
        pointer-events: auto;
        transform: translateY(0);
    }
    
    .nav-menu .nav-item {
        display: block !important;
        width: 100%;
        visibility: visible !important;
        opacity: 1 !important;
    }
    
    .nav-menu .nav-link {
        display: block !important;
        padding: 16px 12px;
        font-size: 18px;
        border-bottom: 1px solid var(--color-gray-100);
        color: var(--color-gray-800) !important;
        background: var(--color-white);
        visibility: visible !important;
        opacity: 1 !important;
    }
    
    .nav-menu .nav-link:hover,
    .nav-menu .nav-link.active {
        color: var(--color-primary) !important;
        background: var(--color-gray-50);
    }
    
    .nav-link::after {
        display: none;
    }
    
    .nav-menu .btn {
        margin-top: var(--spacing-4);
        width: 100%;
    }
    
    .nav-cta {
        display: none;
    }
}

/* ========================================
   7. Hero Section
======================================== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: var(--header-height);
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    inset: 0;
    z-index: -1;
}

.hero-gradient {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, 
        rgba(var(--color-primary-rgb), 0.03) 0%,
        rgba(255, 255, 255, 1) 50%,
        rgba(0, 168, 232, 0.03) 100%
    );
}

.hero-pattern {
    position: absolute;
    inset: 0;
    background-image: 
        radial-gradient(circle at 20% 80%, rgba(var(--color-primary-rgb), 0.05) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(0, 168, 232, 0.05) 0%, transparent 50%);
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-12);
    align-items: center;
    padding: var(--spacing-8) 0;
}

@media (min-width: 1024px) {
    .hero-content {
        grid-template-columns: 1fr 1fr;
        gap: var(--spacing-16);
        padding: var(--spacing-16) 0;
    }
}

/* Hero Text */
.hero-text {
    text-align: center;
}

@media (min-width: 1024px) {
    .hero-text {
        text-align: left;
    }
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-2);
    padding: var(--spacing-2) var(--spacing-4);
    background: rgba(var(--color-primary-rgb), 0.1);
    border-radius: var(--radius-full);
    font-size: var(--text-sm);
    font-weight: var(--font-medium);
    color: var(--color-primary);
    margin-bottom: var(--spacing-6);
}

.badge-dot {
    width: 8px;
    height: 8px;
    background: var(--color-success);
    border-radius: 50%;
    animation: pulse 2s infinite;
}

.hero-title {
    margin-bottom: var(--spacing-6);
}

.title-accent {
    display: block;
    font-size: clamp(1rem, 2vw, var(--text-xl));
    font-weight: var(--font-semibold);
    color: var(--color-accent);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: var(--spacing-2);
}

.title-main {
    display: block;
    font-size: clamp(3rem, 8vw, 5rem);
    font-weight: var(--font-extrabold);
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary-light) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-description {
    font-size: var(--text-lg);
    color: var(--color-gray-600);
    margin-bottom: var(--spacing-8);
    max-width: 540px;
}

@media (min-width: 1024px) {
    .hero-description {
        font-size: var(--text-xl);
    }
}

.hero-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-4);
    margin-bottom: var(--spacing-10);
    justify-content: center;
}

@media (min-width: 1024px) {
    .hero-buttons {
        justify-content: flex-start;
    }
}

/* Hero Stats */
.hero-stats {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-8);
    justify-content: center;
}

@media (min-width: 1024px) {
    .hero-stats {
        justify-content: flex-start;
    }
}

.stat-item {
    text-align: center;
}

@media (min-width: 1024px) {
    .stat-item {
        text-align: left;
    }
}

.stat-number {
    font-family: var(--font-heading);
    font-size: var(--text-3xl);
    font-weight: var(--font-bold);
    color: var(--color-primary);
}

.stat-suffix {
    font-family: var(--font-heading);
    font-size: var(--text-2xl);
    font-weight: var(--font-bold);
    color: var(--color-accent);
}

.stat-label {
    display: block;
    font-size: var(--text-sm);
    color: var(--color-gray-500);
}

/* Hero Visual */
.hero-visual {
    display: none;
    position: relative;
}

@media (min-width: 768px) {
    .hero-visual {
        display: block;
    }
}

.hero-image-wrapper {
    position: relative;
    width: 100%;
    max-width: 500px;
    margin: 0 auto;
}

.hero-image-bg {
    position: absolute;
    inset: -10%;
    background: radial-gradient(circle, rgba(var(--color-primary-rgb), 0.1) 0%, transparent 70%);
    border-radius: 50%;
}

.hero-illustration {
    position: relative;
    width: 100%;
    padding-bottom: 100%;
}

.hero-svg {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    color: var(--color-primary);
}

/* Floating Cards */
.floating-card {
    position: absolute;
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
    padding: var(--spacing-3) var(--spacing-4);
    background: var(--color-white);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    font-size: var(--text-sm);
    font-weight: var(--font-medium);
    color: var(--color-gray-700);
    animation: float 6s ease-in-out infinite;
}

.floating-card-icon {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(var(--color-primary-rgb), 0.1);
    border-radius: var(--radius-lg);
    color: var(--color-primary);
}

.floating-card-icon svg {
    width: 20px;
    height: 20px;
}

.floating-card.card-1 {
    top: 10%;
    left: -5%;
    animation-delay: 0s;
}

.floating-card.card-2 {
    bottom: 20%;
    right: -5%;
    animation-delay: 2s;
}

.floating-card.card-3 {
    top: 50%;
    right: 5%;
    animation-delay: 4s;
}

/* Hero Scroll Indicator */
.hero-scroll {
    position: absolute;
    bottom: var(--spacing-8);
    left: 50%;
    transform: translateX(-50%);
}

.scroll-indicator {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-2);
    color: var(--color-gray-400);
    text-decoration: none;
    transition: color var(--transition-fast);
}

.scroll-indicator:hover {
    color: var(--color-primary);
}

.scroll-text {
    font-size: var(--text-xs);
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.scroll-line {
    width: 1px;
    height: 40px;
    background: linear-gradient(to bottom, currentColor, transparent);
    animation: scrollBounce 2s ease-in-out infinite;
}

/* ========================================
   8. Services Section
======================================== */
.services-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-6);
}

@media (min-width: 640px) {
    .services-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .services-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

.service-card {
    position: relative;
    padding: var(--spacing-8);
    background: var(--color-white);
    border: 1px solid var(--color-gray-200);
    border-radius: var(--radius-2xl);
    transition: all var(--transition-base);
}

.service-card:hover {
    border-color: transparent;
    box-shadow: var(--shadow-xl);
    transform: translateY(-4px);
}

.service-icon {
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, rgba(var(--color-primary-rgb), 0.1), rgba(0, 168, 232, 0.1));
    border-radius: var(--radius-xl);
    margin-bottom: var(--spacing-5);
    color: var(--color-primary);
    transition: all var(--transition-base);
}

.service-icon svg {
    width: 28px;
    height: 28px;
}

.service-card:hover .service-icon {
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary-light));
    color: var(--color-white);
}

.service-title {
    font-size: var(--text-xl);
    margin-bottom: var(--spacing-3);
}

.service-description {
    color: var(--color-gray-600);
    margin-bottom: var(--spacing-4);
}

.service-features {
    margin-bottom: var(--spacing-5);
}

.service-features li {
    position: relative;
    padding-left: var(--spacing-5);
    font-size: var(--text-sm);
    color: var(--color-gray-600);
    margin-bottom: var(--spacing-2);
}

.service-features li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 6px;
    width: 6px;
    height: 6px;
    background: var(--color-accent);
    border-radius: 50%;
}

.service-link {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-2);
    font-size: var(--text-sm);
    font-weight: var(--font-semibold);
    color: var(--color-primary);
    transition: gap var(--transition-fast);
}

.service-link:hover {
    gap: var(--spacing-3);
    color: var(--color-accent);
}

.service-link svg {
    width: 16px;
    height: 16px;
}

/* Service CTA Card */
.service-card-cta {
    background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
    border-color: transparent;
    display: flex;
    align-items: center;
}

.service-card-cta:hover {
    transform: translateY(-4px);
}

.service-cta-content {
    text-align: center;
}

.service-card-cta .service-title {
    color: var(--color-white);
}

.service-card-cta .service-description {
    color: rgba(255, 255, 255, 0.8);
}

.service-card-cta .btn {
    margin-top: var(--spacing-4);
}

/* ========================================
   9. Why Choose Us Section
======================================== */
.why-us-wrapper {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-12);
    align-items: center;
}

@media (min-width: 1024px) {
    .why-us-wrapper {
        grid-template-columns: 1fr 1fr;
        gap: var(--spacing-16);
    }
}

.why-us-content .section-badge,
.why-us-content .section-title,
.why-us-content .section-description {
    text-align: left;
}

.why-us-content .section-description {
    margin-bottom: var(--spacing-8);
}

.why-us-features {
    display: grid;
    gap: var(--spacing-6);
}

.feature-item {
    display: flex;
    gap: var(--spacing-4);
}

.feature-icon {
    flex-shrink: 0;
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-white);
    border-radius: var(--radius-xl);
    color: var(--color-primary);
    box-shadow: var(--shadow-md);
}

.feature-icon svg {
    width: 24px;
    height: 24px;
}

.feature-content h4 {
    font-size: var(--text-lg);
    margin-bottom: var(--spacing-1);
}

.feature-content p {
    font-size: var(--text-sm);
    color: var(--color-gray-600);
    margin-bottom: 0;
}

/* Stats Card */
.stats-card {
    background: var(--color-white);
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow-xl);
    overflow: hidden;
}

.stats-header {
    padding: var(--spacing-6);
    background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
}

.stats-header h3 {
    color: var(--color-white);
    font-size: var(--text-xl);
    margin: 0;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1px;
    background: var(--color-gray-200);
}

.stats-item {
    padding: var(--spacing-6);
    background: var(--color-white);
    text-align: center;
}

.stats-number {
    display: block;
    font-family: var(--font-heading);
    font-size: var(--text-3xl);
    font-weight: var(--font-bold);
    color: var(--color-primary);
}

.stats-label {
    font-size: var(--text-sm);
    color: var(--color-gray-600);
}

/* ========================================
   10. Product Highlight Section
======================================== */
.product-wrapper {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-12);
    align-items: center;
}

@media (min-width: 1024px) {
    .product-wrapper {
        grid-template-columns: 1fr 1fr;
        gap: var(--spacing-16);
    }
}

/* Product Visual */
.product-visual {
    order: 2;
}

@media (min-width: 1024px) {
    .product-visual {
        order: 1;
    }
}

.product-mockup {
    position: relative;
    max-width: 320px;
    margin: 0 auto;
}

.phone-frame {
    position: relative;
    background: var(--color-gray-900);
    border-radius: 36px;
    padding: 12px;
    box-shadow: var(--shadow-2xl);
}

.phone-frame::before {
    content: '';
    position: absolute;
    top: 16px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 24px;
    background: var(--color-gray-800);
    border-radius: 20px;
}

.phone-screen {
    background: var(--color-white);
    border-radius: 28px;
    overflow: hidden;
    padding-top: 32px;
}

.chat-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
    padding: var(--spacing-4);
    background: var(--color-whatsapp);
    color: var(--color-white);
}

.chat-avatar {
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.chat-avatar svg {
    width: 24px;
    height: 24px;
}

.chat-info {
    display: flex;
    flex-direction: column;
}

.chat-name {
    font-weight: var(--font-semibold);
    font-size: var(--text-sm);
}

.chat-status {
    font-size: var(--text-xs);
    opacity: 0.8;
}

.chat-messages {
    padding: var(--spacing-4);
    background: #E5DDD5;
    min-height: 300px;
}

.message {
    max-width: 80%;
    padding: var(--spacing-3);
    border-radius: var(--radius-lg);
    margin-bottom: var(--spacing-3);
    position: relative;
}

.message p {
    font-size: var(--text-sm);
    margin: 0;
    line-height: 1.4;
}

.message-time {
    display: block;
    font-size: 10px;
    color: var(--color-gray-500);
    text-align: right;
    margin-top: var(--spacing-1);
}

.message-in {
    background: var(--color-white);
    border-bottom-left-radius: 4px;
    margin-right: auto;
}

.message-out {
    background: #DCF8C6;
    border-bottom-right-radius: 4px;
    margin-left: auto;
}

.product-badge {
    position: absolute;
    bottom: -20px;
    right: -20px;
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
    padding: var(--spacing-3) var(--spacing-4);
    background: var(--color-whatsapp);
    color: var(--color-white);
    border-radius: var(--radius-full);
    font-size: var(--text-sm);
    font-weight: var(--font-semibold);
    box-shadow: var(--shadow-lg);
}

.product-badge svg {
    width: 20px;
    height: 20px;
}

/* Product Content */
.product-content {
    order: 1;
}

@media (min-width: 1024px) {
    .product-content {
        order: 2;
    }
}

.product-content .section-badge,
.product-content .section-title {
    text-align: left;
}

@media (max-width: 1023px) {
    .product-content .section-badge,
    .product-content .section-title {
        text-align: center;
    }
}

.product-description {
    font-size: var(--text-lg);
    color: var(--color-gray-600);
    margin-bottom: var(--spacing-6);
}

@media (max-width: 1023px) {
    .product-description {
        text-align: center;
    }
}

.product-features {
    margin-bottom: var(--spacing-8);
}

.product-features li {
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
    padding: var(--spacing-3) 0;
    font-size: var(--text-base);
    color: var(--color-gray-700);
}

.product-features li svg {
    flex-shrink: 0;
    width: 20px;
    height: 20px;
    color: var(--color-success);
}

.product-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-4);
}

@media (max-width: 1023px) {
    .product-buttons {
        justify-content: center;
    }
}

/* ========================================
   11. CTA Section
======================================== */
.cta {
    position: relative;
    background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
    overflow: hidden;
}

.cta-bg {
    position: absolute;
    inset: 0;
    z-index: 0;
}

.cta-pattern {
    position: absolute;
    inset: 0;
    background-image: 
        radial-gradient(circle at 20% 50%, rgba(255, 255, 255, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 50%, rgba(0, 168, 232, 0.2) 0%, transparent 50%);
}

.cta-content {
    position: relative;
    z-index: 1;
    text-align: center;
    max-width: 700px;
    margin: 0 auto;
}

.cta-title {
    color: var(--color-white);
    margin-bottom: var(--spacing-4);
}

.cta-description {
    color: rgba(255, 255, 255, 0.8);
    font-size: var(--text-lg);
    margin-bottom: var(--spacing-8);
}

.cta-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-4);
    justify-content: center;
}

/* ========================================
   12. Footer
======================================== */
.footer {
    background: var(--color-gray-900);
    color: var(--color-gray-400);
    padding-top: var(--spacing-16);
}

.footer-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-10);
    padding-bottom: var(--spacing-12);
    border-bottom: 1px solid var(--color-gray-800);
}

@media (min-width: 640px) {
    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .footer-grid {
        grid-template-columns: 2fr 1fr 1fr 1.5fr;
    }
}

/* Footer Brand */
.footer-brand {
    grid-column: 1 / -1;
}

@media (min-width: 1024px) {
    .footer-brand {
        grid-column: auto;
    }
}

.footer-logo {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-3);
    margin-bottom: var(--spacing-4);
}

.footer-logo-img {
    height: 70px;
    width: auto;
    object-fit: contain;
    background: white;
    padding: 8px;
    border-radius: 8px;
}

.footer-logo .logo-icon {
    color: var(--color-accent);
}

.footer-logo .logo-name {
    color: var(--color-white);
}

.footer-logo .logo-tagline {
    color: var(--color-gray-500);
}

.footer-description {
    max-width: 300px;
    margin-bottom: var(--spacing-6);
    line-height: var(--leading-relaxed);
}

.footer-social {
    display: flex;
    gap: var(--spacing-3);
}

.social-link {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-gray-800);
    border-radius: var(--radius-lg);
    color: var(--color-gray-400);
    transition: all var(--transition-fast);
}

.social-link:hover {
    background: var(--color-primary);
    color: var(--color-white);
}

.social-link svg {
    width: 18px;
    height: 18px;
}

/* Footer Links */
.footer-title {
    font-size: var(--text-base);
    font-weight: var(--font-semibold);
    color: var(--color-white);
    margin-bottom: var(--spacing-5);
}

.footer-links ul {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-3);
}

.footer-links a {
    color: var(--color-gray-400);
    font-size: var(--text-sm);
    transition: color var(--transition-fast);
}

.footer-links a:hover {
    color: var(--color-white);
}

/* Footer Contact */
.footer-contact ul {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-4);
}

.footer-contact li {
    display: flex;
    gap: var(--spacing-3);
    font-size: var(--text-sm);
}

.footer-contact svg {
    flex-shrink: 0;
    width: 20px;
    height: 20px;
    color: var(--color-accent);
}

.footer-contact a {
    color: var(--color-gray-400);
}

.footer-contact a:hover {
    color: var(--color-white);
}

/* Footer Bottom */
.footer-bottom {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-4);
    align-items: center;
    padding: var(--spacing-6) 0;
    font-size: var(--text-sm);
}

@media (min-width: 768px) {
    .footer-bottom {
        flex-direction: row;
        justify-content: space-between;
    }
}

.footer-bottom-links {
    display: flex;
    gap: var(--spacing-6);
}

.footer-bottom-links a {
    color: var(--color-gray-400);
}

.footer-bottom-links a:hover {
    color: var(--color-white);
}

/* ========================================
   13. Floating Elements
======================================== */
/* WhatsApp Button */
.whatsapp-float {
    position: fixed;
    bottom: var(--spacing-6);
    right: var(--spacing-6);
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-whatsapp);
    color: var(--color-white);
    border-radius: 50%;
    box-shadow: 0 4px 20px rgba(37, 211, 102, 0.4);
    z-index: var(--z-fixed);
    transition: all var(--transition-base);
}

.whatsapp-float:hover {
    transform: scale(1.1);
    box-shadow: 0 6px 30px rgba(37, 211, 102, 0.5);
    color: var(--color-white);
}

.whatsapp-float svg {
    width: 28px;
    height: 28px;
}

.whatsapp-tooltip {
    position: absolute;
    right: 70px;
    background: var(--color-gray-900);
    color: var(--color-white);
    padding: var(--spacing-2) var(--spacing-3);
    border-radius: var(--radius-md);
    font-size: var(--text-sm);
    white-space: nowrap;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-fast);
}

.whatsapp-float:hover .whatsapp-tooltip {
    opacity: 1;
    visibility: visible;
}

/* Back to Top Button */
.back-to-top {
    position: fixed;
    bottom: var(--spacing-6);
    right: calc(var(--spacing-6) + 70px);
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-white);
    color: var(--color-primary);
    border: 1px solid var(--color-gray-200);
    border-radius: 50%;
    box-shadow: var(--shadow-md);
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: all var(--transition-base);
    z-index: var(--z-fixed);
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.back-to-top:hover {
    background: var(--color-primary);
    color: var(--color-white);
    border-color: var(--color-primary);
}

.back-to-top svg {
    width: 20px;
    height: 20px;
}

/* ========================================
   14. Utilities
======================================== */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* ========================================
   15. Animations
======================================== */
@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.5;
    }
}

@keyframes float {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-10px);
    }
}

@keyframes scrollBounce {
    0%, 100% {
        transform: scaleY(1);
        transform-origin: top;
    }
    50% {
        transform: scaleY(1.5);
        transform-origin: top;
    }
}

/* Animation Classes */
[data-animate] {
    opacity: 0;
    transition: all 0.6s ease-out;
}

[data-animate="fade-up"] {
    transform: translateY(30px);
}

[data-animate="fade-down"] {
    transform: translateY(-30px);
}

[data-animate="fade-left"] {
    transform: translateX(30px);
}

[data-animate="fade-right"] {
    transform: translateX(-30px);
}

[data-animate].animated {
    opacity: 1;
    transform: translate(0);
}

/* Staggered Animation Delays */
[data-delay="100"] { transition-delay: 100ms; }
[data-delay="200"] { transition-delay: 200ms; }
[data-delay="300"] { transition-delay: 300ms; }
[data-delay="400"] { transition-delay: 400ms; }
[data-delay="500"] { transition-delay: 500ms; }
[data-delay="600"] { transition-delay: 600ms; }

/* ========================================
   16. Page Specific Styles
======================================== */
/* Page Header for Inner Pages */
.page-header {
    padding: calc(var(--header-height) + var(--spacing-16)) 0 var(--spacing-16);
    background: linear-gradient(135deg, rgba(var(--color-primary-rgb), 0.05), rgba(0, 168, 232, 0.05));
    text-align: center;
}

.page-header .section-badge {
    margin-bottom: var(--spacing-4);
}

.page-header .page-title {
    margin-bottom: var(--spacing-4);
}

.page-header .page-description {
    max-width: 600px;
    margin: 0 auto;
    color: var(--color-gray-600);
    font-size: var(--text-lg);
}

/* Breadcrumb */
.breadcrumb {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-2);
    margin-bottom: var(--spacing-6);
    font-size: var(--text-sm);
}

.breadcrumb a {
    color: var(--color-gray-500);
}

.breadcrumb a:hover {
    color: var(--color-primary);
}

.breadcrumb-separator {
    color: var(--color-gray-400);
}

.breadcrumb-current {
    color: var(--color-primary);
    font-weight: var(--font-medium);
}

/* ========================================
   17. Form Styles
======================================== */
.form-group {
    margin-bottom: var(--spacing-5);
}

.form-label {
    display: block;
    margin-bottom: var(--spacing-2);
    font-size: var(--text-sm);
    font-weight: var(--font-medium);
    color: var(--color-gray-700);
}

.form-input,
.form-textarea,
.form-select {
    width: 100%;
    padding: var(--spacing-3) var(--spacing-4);
    font-family: var(--font-primary);
    font-size: var(--text-base);
    color: var(--color-gray-900);
    background: var(--color-white);
    border: 1px solid var(--color-gray-300);
    border-radius: var(--radius-lg);
    transition: all var(--transition-fast);
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(var(--color-primary-rgb), 0.1);
}

.form-input::placeholder,
.form-textarea::placeholder {
    color: var(--color-gray-400);
}

.form-textarea {
    min-height: 150px;
    resize: vertical;
}

/* ========================================
   18. Media Queries for Fine-tuning
======================================== */
@media (max-width: 639px) {
    .hero-buttons .btn {
        width: 100%;
    }
    
    .hero-stats {
        gap: var(--spacing-6);
    }
    
    .stat-item {
        flex: 1;
        min-width: 80px;
    }
}

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    html {
        scroll-behavior: auto;
    }
}

/* Print Styles */
@media print {
    .header,
    .whatsapp-float,
    .back-to-top,
    .hero-scroll {
        display: none !important;
    }
    
    .hero {
        min-height: auto;
        padding-top: 0;
    }
    
    body {
        font-size: 12pt;
        color: #000;
    }
}

/* ========================================
   School Management System Styles
======================================== */

/* Product Hero Reverse Layout */
.product-hero-reverse {
    flex-direction: row-reverse;
}

@media (max-width: 1023px) {
    .product-hero-reverse {
        flex-direction: column;
    }
}

.product-badge-secondary {
    background: linear-gradient(135deg, var(--color-accent), #0077b6);
}

/* Dashboard Mockup */
.dashboard-mockup {
    position: relative;
    max-width: 500px;
    margin: 0 auto;
}

.dashboard-frame {
    background: #fff;
    border-radius: 12px;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    overflow: hidden;
}

.dashboard-header {
    background: linear-gradient(135deg, #4f46e5, #6366f1);
    padding: 12px 16px;
    display: flex;
    align-items: center;
    gap: 12px;
}

.dashboard-dots {
    display: flex;
    gap: 6px;
}

.dashboard-dots span {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
}

.dashboard-dots span:first-child {
    background: #ff5f57;
}

.dashboard-dots span:nth-child(2) {
    background: #febc2e;
}

.dashboard-dots span:nth-child(3) {
    background: #28c840;
}

.dashboard-title {
    color: white;
    font-size: 14px;
    font-weight: 600;
}

.dashboard-content {
    display: flex;
    min-height: 280px;
}

.dashboard-sidebar {
    width: 60px;
    background: #1e1b4b;
    padding: 16px 8px;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.sidebar-item {
    width: 100%;
    height: 36px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 6px;
}

.sidebar-item.active {
    background: #4f46e5;
}

.dashboard-main {
    flex: 1;
    padding: 16px;
    background: #f8fafc;
}

.stats-row {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 8px;
    margin-bottom: 16px;
}

.stat-box {
    background: white;
    padding: 12px 8px;
    border-radius: 8px;
    text-align: center;
    border-top: 3px solid;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.stat-box.blue {
    border-color: #3b82f6;
}

.stat-box.green {
    border-color: #22c55e;
}

.stat-box.orange {
    border-color: #f59e0b;
}

.stat-box.teal {
    border-color: #14b8a6;
}

.stat-num {
    display: block;
    font-size: 18px;
    font-weight: 700;
    color: #1e293b;
}

.stat-text {
    font-size: 9px;
    color: #64748b;
    text-transform: uppercase;
}

.chart-placeholder {
    background: white;
    height: 140px;
    border-radius: 8px;
    position: relative;
    overflow: hidden;
}

.chart-placeholder::after {
    content: '';
    position: absolute;
    bottom: 20px;
    left: 20px;
    right: 20px;
    height: 2px;
    background: linear-gradient(90deg, #3b82f6, #22c55e, #f59e0b);
    border-radius: 2px;
}

/* Modules Grid */
.modules-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: var(--spacing-6);
    margin-bottom: var(--spacing-12);
}

.module-card {
    background: var(--color-white);
    padding: var(--spacing-6);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--color-gray-100);
    transition: all var(--transition-base);
}

.module-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--color-accent);
}

.module-icon {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-4);
}

.module-icon svg {
    width: 24px;
    height: 24px;
    stroke: white;
}

.module-card h3 {
    font-size: var(--text-lg);
    font-weight: var(--font-semibold);
    color: var(--color-gray-900);
    margin-bottom: var(--spacing-2);
}

.module-card p {
    font-size: var(--text-sm);
    color: var(--color-gray-600);
    line-height: var(--leading-relaxed);
}

/* SMS Features */
.sms-features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-6);
    padding: var(--spacing-8);
    background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
    border-radius: var(--radius-2xl);
}

.sms-feature-box {
    text-align: center;
    color: white;
}

.sms-feature-icon {
    width: 60px;
    height: 60px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--spacing-3);
}

.sms-feature-icon svg {
    width: 28px;
    height: 28px;
    stroke: white;
}

.sms-feature-box h4 {
    font-size: var(--text-base);
    font-weight: var(--font-semibold);
    margin-bottom: var(--spacing-1);
}

.sms-feature-box p {
    font-size: var(--text-sm);
    opacity: 0.9;
}

@media (max-width: 768px) {
    .stats-row {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .dashboard-sidebar {
        width: 50px;
    }
    
    .modules-grid {
        grid-template-columns: 1fr;
    }
}