/* ============================================
   DONATION POS - Enhanced Bilingual Stylesheet
   Professional donation terminals for charitable organizations

   Version: 2.0 - Enhanced Design with Bilingual Support
   ============================================ */

/* ============================================
   1. CSS VARIABLES
   ============================================ */
:root {
    /* Primary Colors - Navy Blue Institutional */
    --color-primary: #1e3a5f;
    --color-primary-dark: #152a45;
    --color-primary-light: #2d5a8a;
    --color-primary-rgb: 30, 58, 95;

    /* Accent Colors - Orange */
    --color-accent: #ee7a2d;
    --color-accent-dark: #d96a1f;
    --color-accent-light: #f59454;
    --color-accent-rgb: 238, 122, 45;

    /* Neutral Colors */
    --color-white: #ffffff;
    --color-off-white: #f8f9fa;
    --color-gray-50: #f5f6f8;
    --color-gray-100: #e9ecef;
    --color-gray-200: #dee2e6;
    --color-gray-300: #ced4da;
    --color-gray-400: #adb5bd;
    --color-gray-500: #6c757d;
    --color-gray-600: #495057;
    --color-gray-700: #343a40;
    --color-gray-800: #212529;
    --color-gray-900: #1a1d20;

    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-heading: 'Playfair Display', Georgia, serif;

    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-md: 1.125rem;
    --font-size-lg: 1.25rem;
    --font-size-xl: 1.5rem;
    --font-size-2xl: 2rem;
    --font-size-3xl: 2.5rem;
    --font-size-4xl: 3.5rem;
    --font-size-5xl: 4rem;

    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    --spacing-3xl: 4rem;
    --spacing-4xl: 6rem;

    /* Layout */
    --container-max-width: 1200px;
    --container-padding: 1.5rem;
    --header-height: 80px;

    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    --radius-2xl: 24px;
    --radius-full: 9999px;

    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.07);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 40px rgba(0, 0, 0, 0.15);
    --shadow-glow: 0 0 40px rgba(var(--color-accent-rgb), 0.3);

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 250ms ease;
    --transition-slow: 400ms ease;

    /* Z-index */
    --z-dropdown: 100;
    --z-header: 200;
    --z-modal: 300;
}

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

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-primary);
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: var(--color-gray-700);
    background-color: var(--color-white);
}

img, svg { display: block; max-width: 100%; }
button { cursor: pointer; border: none; background: none; font: inherit; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }

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

/* ============================================
   3. TYPOGRAPHY
   ============================================ */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.2;
    color: var(--color-primary);
}

h1 { font-size: var(--font-size-4xl); }
h2 { font-size: var(--font-size-3xl); }
h3 { font-size: var(--font-size-xl); }
h4 { font-size: var(--font-size-lg); }

/* ============================================
   4. LAYOUT
   ============================================ */
.container {
    width: 100%;
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

.section {
    padding: var(--spacing-4xl) 0;
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.section.section-visible {
    opacity: 1;
    transform: translateY(0);
}

/* First section should be visible immediately */
.hero + .section,
.section:first-of-type {
    opacity: 1;
    transform: none;
}

.section--white { background: var(--color-white); }
.section--gray { background: var(--color-gray-50); }
.section--navy {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    color: var(--color-white);
}

.section-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto var(--spacing-3xl);
}

.section-tag {
    display: inline-block;
    font-size: var(--font-size-sm);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-accent);
    margin-bottom: var(--spacing-md);
}

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

.section-subtitle {
    font-size: var(--font-size-md);
    color: var(--color-gray-600);
    line-height: 1.7;
}

.section-header--light .section-title { color: var(--color-white); }
.section-header--light .section-subtitle { color: rgba(255,255,255,0.8); }
.section-header--light .section-tag { color: var(--color-accent-light); }

/* ============================================
   5. HEADER & NAVIGATION
   ============================================ */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--header-height);
    background: var(--color-white);
    z-index: var(--z-header);
    transition: box-shadow var(--transition-base);
}

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

.header .container {
    height: 100%;
}

.nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
    gap: var(--spacing-xl);
}

/* Logo */
.logo {
    display: flex;
    align-items: center;
}

.logo-img {
    height: 65px;
    width: auto;
    object-fit: contain;
}

/* For footer: use logo-white.png or same logo without filter */

/* Language Switcher */
.lang-switcher {
    display: flex;
    gap: var(--spacing-xs);
    padding: var(--spacing-xs);
    background: var(--color-gray-100);
    border-radius: var(--radius-full);
}

.lang-btn {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-xs) var(--spacing-md);
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--color-gray-600);
    background: transparent;
    border-radius: var(--radius-full);
    transition: all var(--transition-fast);
}

.lang-btn:hover {
    color: var(--color-primary);
}

.lang-btn.active {
    background: var(--color-white);
    color: var(--color-primary);
    box-shadow: var(--shadow-sm);
}

.lang-flag {
    font-size: 1.1em;
}

.lang-code {
    font-weight: 600;
}

/* Navigation Menu */
.nav-menu {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
}

.nav-link {
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--color-gray-600);
    padding: var(--spacing-sm) 0;
    position: relative;
    transition: color var(--transition-fast);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--color-accent);
    transition: width var(--transition-base);
}

.nav-link:hover { color: var(--color-primary); }
.nav-link:hover::after { width: 100%; }

.nav-link--cta {
    background: var(--color-primary);
    color: var(--color-white) !important;
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.nav-link--cta::after { display: none; }
.nav-link--cta:hover {
    background: var(--color-primary-dark);
    transform: translateY(-2px);
}

/* Mobile Toggle */
.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    width: 28px;
    padding: 4px;
}

.nav-toggle span {
    display: block;
    width: 100%;
    height: 2px;
    background: var(--color-primary);
    border-radius: 2px;
    transition: var(--transition-fast);
}

.nav-toggle[aria-expanded="true"] span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}
.nav-toggle[aria-expanded="true"] span:nth-child(2) {
    opacity: 0;
}
.nav-toggle[aria-expanded="true"] span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

/* ============================================
   6. BUTTONS
   ============================================ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-xl);
    font-size: var(--font-size-base);
    font-weight: 600;
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
    border: 2px solid transparent;
}

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

.btn-primary:hover {
    background: var(--color-primary-dark);
    border-color: var(--color-primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

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

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

.btn-lg {
    padding: var(--spacing-lg) var(--spacing-2xl);
    font-size: var(--font-size-md);
}

.btn-full { width: 100%; }

.btn svg {
    width: 20px;
    height: 20px;
    transition: transform var(--transition-fast);
}

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

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

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

.hero-gradient {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg,
        var(--color-gray-50) 0%,
        var(--color-white) 40%,
        rgba(var(--color-primary-rgb), 0.03) 100%
    );
}

.hero-pattern {
    position: absolute;
    inset: 0;
    background-image:
        radial-gradient(circle at 20% 80%, rgba(var(--color-accent-rgb), 0.12) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(var(--color-primary-rgb), 0.12) 0%, transparent 50%);
}

/* Floating Shapes in Hero */
.hero-shapes {
    position: absolute;
    inset: 0;
    overflow: hidden;
    pointer-events: none;
}

.hero-shape {
    position: absolute;
    border-radius: 50%;
    opacity: 0.1;
}

.hero-shape--1 {
    width: 400px;
    height: 400px;
    background: var(--color-accent);
    top: -100px;
    right: -100px;
    animation: float 8s ease-in-out infinite;
}

.hero-shape--2 {
    width: 200px;
    height: 200px;
    background: var(--color-primary);
    bottom: 20%;
    left: 5%;
    animation: floatSlow 10s ease-in-out infinite;
    animation-delay: 1s;
}

.hero-shape--3 {
    width: 150px;
    height: 150px;
    background: var(--color-accent);
    top: 40%;
    right: 10%;
    animation: float 7s ease-in-out infinite;
    animation-delay: 2s;
}

.hero-shape--4 {
    width: 80px;
    height: 80px;
    background: var(--color-primary-light);
    bottom: 30%;
    right: 25%;
    animation: floatSlow 9s ease-in-out infinite;
    animation-delay: 0.5s;
}

.hero .container {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-3xl);
    align-items: center;
    padding-top: var(--spacing-3xl);
    padding-bottom: var(--spacing-3xl);
}

.hero-content {
    max-width: 580px;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-lg);
    background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
    color: var(--color-white);
    font-size: var(--font-size-sm);
    font-weight: 600;
    border-radius: var(--radius-full);
    margin-bottom: var(--spacing-xl);
    animation: fadeInUp 0.6s ease;
}

.hero-title {
    font-size: var(--font-size-4xl);
    margin-bottom: var(--spacing-lg);
    animation: fadeInUp 0.6s ease 0.1s both;
}

.hero-subtitle {
    font-size: var(--font-size-lg);
    color: var(--color-gray-600);
    line-height: 1.7;
    margin-bottom: var(--spacing-xl);
    animation: fadeInUp 0.6s ease 0.2s both;
}

.hero-cta {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-3xl);
    animation: fadeInUp 0.6s ease 0.3s both;
}

/* Hero Stats */
.hero-stats {
    display: flex;
    gap: var(--spacing-2xl);
    padding-top: var(--spacing-xl);
    border-top: 1px solid var(--color-gray-200);
    animation: fadeInUp 0.6s ease 0.4s both;
}

.stat {
    text-align: left;
}

.stat-number {
    font-family: var(--font-heading);
    font-size: var(--font-size-3xl);
    font-weight: 700;
    color: var(--color-primary);
    line-height: 1;
}

.stat-suffix {
    font-family: var(--font-heading);
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--color-accent);
}

.stat-label {
    display: block;
    font-size: var(--font-size-sm);
    color: var(--color-gray-500);
    margin-top: var(--spacing-xs);
}

/* Hero Visual / Device */
.hero-visual {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-xl);
    animation: fadeInUp 0.8s ease 0.2s both;
}

.hero-device {
    position: relative;
}

.device-frame {
    position: relative;
    width: 280px;
    background: linear-gradient(180deg, #f8f9fa 0%, #e9ecef 100%);
    border-radius: var(--radius-2xl);
    padding: var(--spacing-lg);
    box-shadow:
        var(--shadow-xl),
        0 0 0 1px rgba(0,0,0,0.05),
        inset 0 1px 0 rgba(255,255,255,0.8);
}

.device-screen {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    color: var(--color-white);
}

.screen-header {
    text-align: center;
    font-size: var(--font-size-sm);
    font-weight: 500;
    opacity: 0.9;
    margin-bottom: var(--spacing-lg);
}

.screen-amounts {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
}

.amount-btn {
    padding: var(--spacing-md);
    background: rgba(255,255,255,0.1);
    border: 1px solid rgba(255,255,255,0.2);
    border-radius: var(--radius-md);
    color: var(--color-white);
    font-size: var(--font-size-lg);
    font-weight: 600;
    transition: all var(--transition-fast);
}

.amount-btn:hover,
.amount-btn.active {
    background: var(--color-accent);
    border-color: var(--color-accent);
    transform: scale(1.05);
    box-shadow: 0 4px 15px rgba(var(--color-accent-rgb), 0.4);
    animation: pulseGrow 0.3s ease;
}

.screen-action {
    text-align: center;
    font-weight: 600;
    padding: var(--spacing-md);
    background: var(--color-accent);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-md);
}

.screen-nfc {
    display: flex;
    justify-content: center;
    color: rgba(255,255,255,0.7);
    animation: pulse 2s infinite;
}

.screen-nfc svg {
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.device-glow {
    position: absolute;
    inset: -40px;
    background: radial-gradient(circle, rgba(var(--color-accent-rgb), 0.15) 0%, transparent 70%);
    animation: glow 3s ease-in-out infinite;
    border-radius: 50%;
    z-index: -1;
    animation: glow 3s ease-in-out infinite;
}

/* Payment Icons */
.hero-payments {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
}

.payment-icon {
    opacity: 0.7;
    transition: opacity var(--transition-fast);
}

.payment-icon:hover {
    opacity: 1;
}

/* Scroll Indicator */
.hero-scroll {
    position: absolute;
    bottom: var(--spacing-xl);
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-sm);
    color: var(--color-gray-500);
    font-size: var(--font-size-sm);
    animation: fadeInUp 0.6s ease 0.5s both;
}

.scroll-indicator {
    width: 24px;
    height: 40px;
    border: 2px solid var(--color-gray-300);
    border-radius: var(--radius-full);
    position: relative;
}

.scroll-indicator::before {
    content: '';
    position: absolute;
    top: 8px;
    left: 50%;
    transform: translateX(-50%);
    width: 4px;
    height: 8px;
    background: var(--color-accent);
    border-radius: var(--radius-full);
    animation: scrollBounce 2s infinite;
}

/* ============================================
   8. TRUST BANNER
   ============================================ */
.trust-banner {
    background: var(--color-primary);
    padding: var(--spacing-xl) 0;
}

.trust-banner .container {
    text-align: center;
}

.trust-text {
    color: rgba(255,255,255,0.8);
    font-size: var(--font-size-sm);
    margin-bottom: var(--spacing-lg);
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.trust-logos {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--spacing-2xl);
}

.trust-logo {
    color: rgba(255,255,255,0.5);
    font-size: var(--font-size-sm);
    font-weight: 600;
    padding: var(--spacing-sm) var(--spacing-lg);
    border: 1px solid rgba(255,255,255,0.2);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.trust-logo:hover {
    color: rgba(255,255,255,0.9);
    border-color: rgba(255,255,255,0.4);
}

/* ============================================
   9. CLIENT CARDS (Who We Serve)
   ============================================ */
.clients-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-xl);
    align-items: stretch;
}

.client-card {
    background: var(--color-white);
    padding: var(--spacing-2xl);
    border-radius: var(--radius-xl);
    border: 1px solid var(--color-gray-100);
    transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1), box-shadow 0.4s ease, border-color 0.3s ease;
    display: flex;
    flex-direction: column;
    height: 100%;
    will-change: transform;
}

.client-card:hover {
    box-shadow: var(--shadow-lg);
    border-color: transparent;
}

.client-text {
    flex-grow: 1;
}

.client-icon {
    width: 64px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--color-gray-50), var(--color-gray-100));
    border-radius: var(--radius-lg);
    margin-bottom: var(--spacing-lg);
    color: var(--color-primary);
}

.client-title {
    font-family: var(--font-primary);
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--color-primary);
    margin-bottom: var(--spacing-md);
}

.client-text {
    font-size: var(--font-size-base);
    color: var(--color-gray-600);
    line-height: 1.7;
}

/* ============================================
   10. TERMINALS SECTION
   ============================================ */
.terminals-category {
    margin-bottom: var(--spacing-3xl);
}

.terminals-category:last-child {
    margin-bottom: 0;
}

.category-title {
    font-family: var(--font-primary);
    font-size: var(--font-size-xl);
    font-weight: 600;
    color: var(--color-primary);
    text-align: center;
    margin-bottom: var(--spacing-sm);
}

.category-desc {
    text-align: center;
    color: var(--color-gray-600);
    max-width: 600px;
    margin: 0 auto var(--spacing-xl);
}

.terminals-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-xl);
    align-items: stretch;
}

.terminal-card {
    background: var(--color-white);
    border-radius: var(--radius-xl);
    overflow: hidden;
    border: 1px solid var(--color-gray-100);
    transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1), box-shadow 0.4s ease;
    display: flex;
    flex-direction: column;
    height: 100%;
    will-change: transform;
}

.terminal-card:hover {
    box-shadow: var(--shadow-xl);
    box-shadow: var(--shadow-lg);
}

.terminal-image {
    position: relative;
    background: linear-gradient(135deg, var(--color-gray-50), var(--color-gray-100));
    padding: var(--spacing-xl);
    min-height: 220px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.terminal-badge {
    position: absolute;
    top: var(--spacing-md);
    right: var(--spacing-md);
    background: var(--color-accent);
    color: var(--color-white);
    font-size: var(--font-size-xs);
    font-weight: 600;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-sm);
}

.terminal-visual {
    width: 120px;
    height: 160px;
    background: linear-gradient(180deg, var(--color-gray-200), var(--color-gray-300));
    border-radius: var(--radius-lg);
    position: relative;
}

.terminal-visual::before {
    content: '';
    position: absolute;
    top: var(--spacing-md);
    left: var(--spacing-md);
    right: var(--spacing-md);
    height: 60px;
    background: var(--color-primary);
    border-radius: var(--radius-sm);
}

.terminal-visual--a920::before { height: 70px; }
.terminal-visual--a80 { width: 100px; height: 140px; }
.terminal-visual--im30 { width: 160px; height: 200px; border-radius: var(--radius-xl); }

/* Terminal Photos */
.terminal-photo {
    max-width: 100%;
    max-height: 180px;
    width: auto;
    height: auto;
    object-fit: contain;
    transition: transform 0.4s ease;
}

.terminal-card:hover .terminal-photo {
    transform: scale(1.05);
}

.terminal-content {
    padding: var(--spacing-xl);
    display: flex;
    flex-direction: column;
    flex-grow: 1;
}

.terminal-name {
    font-family: var(--font-primary);
    font-size: var(--font-size-lg);
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: var(--spacing-sm);
}

.terminal-desc {
    font-size: var(--font-size-sm);
    color: var(--color-gray-600);
    margin-bottom: var(--spacing-md);
    line-height: 1.6;
    flex-grow: 1;
}

.terminal-features {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
    min-height: 60px;
    align-content: flex-start;
}

.terminal-features li {
    font-size: var(--font-size-xs);
    color: var(--color-gray-600);
    background: var(--color-gray-50);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-sm);
    height: fit-content;
}

.terminal-cta {
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--color-accent);
    transition: color var(--transition-fast);
    margin-top: auto;
}

.terminal-cta:hover {
    color: var(--color-accent-dark);
}

/* Wooden Frames Grid */
.frames-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-xl);
    align-items: stretch;
}

.frame-card {
    background: var(--color-white);
    border-radius: var(--radius-xl);
    overflow: hidden;
    border: 1px solid var(--color-gray-100);
    transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1), box-shadow 0.4s ease;
    display: flex;
    flex-direction: column;
    height: 100%;
    will-change: transform;
}

.frame-card:hover {
    box-shadow: var(--shadow-lg);
}

.frame-image {
    height: 320px;
    background: linear-gradient(135deg, #e8dfd0, #d4c4b0);
    flex-shrink: 0;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-md);
}

.frame-photo {
    width: 100%;
    height: 100%;
    object-fit: contain;
    transition: transform 0.4s ease;
}

.frame-card:hover .frame-photo {
    transform: scale(1.08);
}

.frame-image--byzantine {
    background: linear-gradient(135deg, #c9a962 20%, #a88b4a 80%);
}

.frame-image--classic {
    background: linear-gradient(135deg, #8b6914, #a67c00);
}

.frame-image--modern {
    background: linear-gradient(135deg, #5d4037, #795548);
}

.frame-content {
    padding: var(--spacing-lg);
    text-align: center;
}

.frame-content h4 {
    font-family: var(--font-primary);
    font-size: var(--font-size-base);
    font-weight: 600;
    color: var(--color-primary);
    margin-bottom: var(--spacing-xs);
}

.frame-content p {
    font-size: var(--font-size-sm);
    color: var(--color-gray-500);
}

/* ============================================
   11. HOW IT WORKS (Steps)
   ============================================ */
.steps {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xl);
    max-width: 800px;
    margin: 0 auto;
}

.step {
    display: flex;
    gap: var(--spacing-xl);
    padding: var(--spacing-xl);
    background: var(--color-gray-50);
    border-radius: var(--radius-xl);
    border-left: 4px solid var(--color-accent);
    transition: all var(--transition-base);
}

.step:hover {
    background: var(--color-white);
    box-shadow: var(--shadow-md);
}

.step-number {
    flex-shrink: 0;
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-primary);
    color: var(--color-white);
    font-family: var(--font-heading);
    font-size: var(--font-size-xl);
    font-weight: 700;
    border-radius: var(--radius-full);
}

.step-content h3 {
    font-family: var(--font-primary);
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--color-primary);
    margin-bottom: var(--spacing-sm);
}

.step-content p {
    color: var(--color-gray-600);
    line-height: 1.7;
}

/* ============================================
   12. SECURITY SECTION
   ============================================ */
.security-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-xl);
    align-items: stretch;
}

.security-card {
    text-align: center;
    padding: var(--spacing-xl);
    background: rgba(255,255,255,0.05);
    border-radius: var(--radius-xl);
    border: 1px solid rgba(255,255,255,0.1);
    transition: all var(--transition-base);
    display: flex;
    flex-direction: column;
    align-items: center;
    height: 100%;
}

.security-card:hover {
    background: rgba(255,255,255,0.1);
    transform: translateY(-4px);
}

.security-card p {
    flex-grow: 1;
}

.security-icon {
    width: 64px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--spacing-lg);
    color: var(--color-accent);
}

.security-card h3 {
    font-family: var(--font-primary);
    font-size: var(--font-size-base);
    font-weight: 600;
    color: var(--color-white);
    margin-bottom: var(--spacing-sm);
}

.security-card p {
    font-size: var(--font-size-sm);
    color: rgba(255,255,255,0.7);
}

/* ============================================
   13. CONTACT SECTION
   ============================================ */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 380px;
    gap: var(--spacing-3xl);
    align-items: start;
}

.contact-form {
    background: var(--color-white);
    padding: var(--spacing-2xl);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
}

.form-group {
    margin-bottom: var(--spacing-lg);
}

.form-group label {
    display: block;
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--color-gray-700);
    margin-bottom: var(--spacing-sm);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: var(--spacing-md);
    font-size: var(--font-size-base);
    border: 1px solid var(--color-gray-300);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

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

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

.form-group select {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 16 16'%3E%3Cpath fill='%236c757d' d='M4 6l4 4 4-4'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    padding-right: 40px;
    cursor: pointer;
}

.form-checkbox {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
}

.form-checkbox input[type="checkbox"] {
    width: auto;
    margin-top: 2px;
}

.form-checkbox label {
    margin-bottom: 0;
    cursor: pointer;
}

/* Contact Info */
.contact-info {
    background: var(--color-primary);
    padding: var(--spacing-2xl);
    border-radius: var(--radius-xl);
    color: var(--color-white);
}

.contact-info h3 {
    font-family: var(--font-primary);
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--color-white);
    margin-bottom: var(--spacing-xl);
    padding-bottom: var(--spacing-lg);
    border-bottom: 1px solid rgba(255,255,255,0.2);
}

.info-item {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
}

.info-item:last-child {
    margin-bottom: 0;
}

.info-item svg {
    flex-shrink: 0;
    color: var(--color-accent);
}

.info-item strong {
    display: block;
    margin-bottom: var(--spacing-xs);
}

.info-item a {
    color: var(--color-white);
    transition: color var(--transition-fast);
}

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

.info-item span {
    font-size: var(--font-size-sm);
    opacity: 0.9;
}

/* ============================================
   13.5 FAQ SECTION
   ============================================ */
.faq-list {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    background: var(--color-white);
    border-radius: var(--radius-lg);
    margin-bottom: var(--spacing-md);
    border: 1px solid var(--color-gray-200);
    overflow: hidden;
    transition: all var(--transition-base);
}

.faq-item:hover {
    border-color: var(--color-gray-300);
}

.faq-item.active {
    border-color: var(--color-primary);
    box-shadow: var(--shadow-md);
}

.faq-question {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--spacing-lg);
    padding: var(--spacing-lg) var(--spacing-xl);
    text-align: left;
    font-size: var(--font-size-base);
    font-weight: 600;
    color: var(--color-primary);
    background: transparent;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.faq-question:hover {
    background: var(--color-gray-50);
}

.faq-question span {
    flex: 1;
}

.faq-icon {
    flex-shrink: 0;
    color: var(--color-accent);
    transition: transform var(--transition-base);
}

.faq-item.active .faq-icon {
    transform: rotate(180deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-slow);
}

.faq-answer p {
    padding: 0 var(--spacing-xl) var(--spacing-xl);
    color: var(--color-gray-600);
    line-height: 1.7;
}

/* ============================================
   14. FOOTER
   ============================================ */
.footer {
    background: var(--color-gray-900);
    color: var(--color-gray-400);
    padding-top: var(--spacing-4xl);
}

.footer-main {
    display: grid;
    grid-template-columns: 1.5fr 2fr;
    gap: var(--spacing-3xl);
    padding-bottom: var(--spacing-3xl);
    border-bottom: 1px solid var(--color-gray-700);
}

.footer-brand {
    max-width: 320px;
}

.footer-brand p {
    margin-top: var(--spacing-lg);
    font-size: var(--font-size-sm);
    line-height: 1.7;
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-xl);
}

.footer-col h4 {
    font-family: var(--font-primary);
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--color-white);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--spacing-lg);
}

.footer-col ul li {
    margin-bottom: var(--spacing-sm);
}

.footer-col a {
    font-size: var(--font-size-sm);
    transition: color var(--transition-fast);
}

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

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-xl) 0;
}

.footer-bottom p {
    font-size: var(--font-size-sm);
}

.footer-badges {
    display: flex;
    gap: var(--spacing-md);
}

.footer-badges span {
    font-size: var(--font-size-xs);
    font-weight: 600;
    padding: var(--spacing-xs) var(--spacing-sm);
    background: rgba(255,255,255,0.1);
    border-radius: var(--radius-sm);
}

/* ============================================
   15. MODAL
   ============================================ */
.modal {
    position: fixed;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: var(--z-modal);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base);
}

.modal.active {
    opacity: 1;
    visibility: visible;
}

.modal-overlay {
    position: absolute;
    inset: 0;
    background: rgba(0,0,0,0.5);
}

.modal-content {
    position: relative;
    background: var(--color-white);
    padding: var(--spacing-3xl);
    border-radius: var(--radius-xl);
    max-width: 400px;
    width: 90%;
    text-align: center;
    transform: translateY(20px);
    transition: transform var(--transition-base);
}

.modal.active .modal-content {
    transform: translateY(0);
}

.modal-icon {
    width: 64px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--spacing-lg);
    background: #28a745;
    color: white;
    font-size: var(--font-size-2xl);
    border-radius: var(--radius-full);
}

.modal-content h3 {
    margin-bottom: var(--spacing-md);
}

.modal-content p {
    color: var(--color-gray-600);
    margin-bottom: var(--spacing-xl);
}

/* ============================================
   16. ANIMATIONS
   ============================================ */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInLeft {
    from {
        opacity: 0;
        transform: translateX(-40px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes fadeInRight {
    from {
        opacity: 0;
        transform: translateX(40px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes scaleIn {
    from {
        opacity: 0;
        transform: scale(0.9);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-15px); }
}

@keyframes floatSlow {
    0%, 100% { transform: translateY(0px) rotate(0deg); }
    50% { transform: translateY(-10px) rotate(2deg); }
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

@keyframes pulseGrow {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.05); }
}

@keyframes glow {
    0%, 100% { transform: scale(1); opacity: 0.5; }
    50% { transform: scale(1.1); opacity: 0.8; }
}

@keyframes shimmer {
    0% { background-position: -200% 0; }
    100% { background-position: 200% 0; }
}

@keyframes gradientShift {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

@keyframes scrollBounce {
    0%, 100% { transform: translateX(-50%) translateY(0); }
    50% { transform: translateX(-50%) translateY(8px); }
}

@keyframes ripple {
    0% { transform: scale(0); opacity: 1; }
    100% { transform: scale(4); opacity: 0; }
}

@keyframes slideInStagger {
    from {
        opacity: 0;
        transform: translateY(40px) scale(0.95);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

/* Animated Gradient Background */
.animated-gradient {
    background: linear-gradient(-45deg, var(--color-primary), var(--color-primary-light), var(--color-primary-dark), var(--color-primary));
    background-size: 400% 400%;
    animation: gradientShift 15s ease infinite;
}

/* Floating Animation Classes */
.float {
    animation: float 4s ease-in-out infinite;
}

.float-slow {
    animation: floatSlow 6s ease-in-out infinite;
}

.float-delay-1 { animation-delay: 0.5s; }
.float-delay-2 { animation-delay: 1s; }
.float-delay-3 { animation-delay: 1.5s; }

/* Enhanced Button Effects */
.btn {
    position: relative;
    overflow: hidden;
}

.btn::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    background: rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    transition: width 0.6s ease, height 0.6s ease;
}

.btn:hover::after {
    width: 300px;
    height: 300px;
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 30px rgba(var(--color-accent-rgb), 0.4);
}

.btn-outline:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 30px rgba(var(--color-primary-rgb), 0.2);
}

/* Card 3D Hover Effect */
.card-3d {
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    transform-style: preserve-3d;
}

.card-3d:hover {
    transform: translateY(-8px) rotateX(2deg) rotateY(-2deg);
    box-shadow: var(--shadow-xl);
}

/* Shimmer Effect for Loading/Highlights */
.shimmer {
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.4), transparent);
    background-size: 200% 100%;
    animation: shimmer 2s infinite;
}

/* Animated Underline for Links */
.animated-underline {
    position: relative;
}

.animated-underline::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--color-accent);
    transition: width 0.3s ease;
}

.animated-underline:hover::after {
    width: 100%;
}

/* Staggered Grid Animations */
.stagger-grid > *:nth-child(1) { animation-delay: 0s; }
.stagger-grid > *:nth-child(2) { animation-delay: 0.1s; }
.stagger-grid > *:nth-child(3) { animation-delay: 0.2s; }
.stagger-grid > *:nth-child(4) { animation-delay: 0.3s; }
.stagger-grid > *:nth-child(5) { animation-delay: 0.4s; }
.stagger-grid > *:nth-child(6) { animation-delay: 0.5s; }

/* Scroll Animations */
.animate-on-scroll {
    opacity: 0;
    transform: translateY(40px);
    transition: all 0.7s cubic-bezier(0.4, 0, 0.2, 1);
}

.animate-on-scroll.visible {
    opacity: 1;
    transform: translateY(0);
}

.animate-on-scroll.from-left {
    transform: translateX(-40px);
}

.animate-on-scroll.from-right {
    transform: translateX(40px);
}

.animate-on-scroll.from-left.visible,
.animate-on-scroll.from-right.visible {
    transform: translateX(0);
}

.animate-on-scroll.scale {
    transform: scale(0.9);
}

.animate-on-scroll.scale.visible {
    transform: scale(1);
}

/* Parallax Layer */
.parallax-layer {
    will-change: transform;
    transition: transform 0.1s ease-out;
}

/* Pulse Effect for CTAs */
.pulse-cta {
    animation: pulseGrow 2s ease-in-out infinite;
}

/* Icon Bounce on Hover */
.icon-bounce:hover svg,
.icon-bounce:hover .icon {
    animation: float 0.5s ease;
}

/* Number Counter Animation Enhancement */
.stat-number {
    display: inline-block;
    transition: transform 0.3s ease;
}

.stat-number.counting {
    transform: scale(1.1);
    color: var(--color-accent);
}

/* Glowing Border Effect */
.glow-border {
    position: relative;
}

.glow-border::before {
    content: '';
    position: absolute;
    inset: -2px;
    background: linear-gradient(45deg, var(--color-accent), var(--color-primary), var(--color-accent));
    background-size: 200% 200%;
    animation: gradientShift 3s ease infinite;
    border-radius: inherit;
    z-index: -1;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.glow-border:hover::before {
    opacity: 1;
}

/* Typing Cursor Effect */
.typing-cursor::after {
    content: '|';
    animation: pulse 1s infinite;
    margin-left: 2px;
}

/* ============================================
   17. RESPONSIVE
   ============================================ */
@media (max-width: 1024px) {
    :root {
        --font-size-4xl: 2.75rem;
        --font-size-3xl: 2rem;
    }

    .hero .container {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .hero-content {
        max-width: 100%;
    }

    .hero-cta {
        justify-content: center;
    }

    .hero-stats {
        justify-content: center;
    }

    .hero-visual {
        order: -1;
    }

    .clients-grid {
        grid-template-columns: 1fr;
    }

    .terminals-grid,
    .frames-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .security-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .contact-grid {
        grid-template-columns: 1fr;
    }

    .contact-info {
        order: -1;
    }
}

@media (max-width: 768px) {
    :root {
        --header-height: 70px;
        --container-padding: 1rem;
    }

    .nav-toggle {
        display: flex;
    }

    .lang-switcher {
        order: 1;
    }

    .nav-menu {
        position: fixed;
        top: var(--header-height);
        left: 0;
        right: 0;
        bottom: 0;
        flex-direction: column;
        padding: var(--spacing-xl);
        background: var(--color-white);
        transform: translateX(100%);
        transition: transform var(--transition-base);
    }

    .nav-menu.active {
        transform: translateX(0);
    }

    .nav-link {
        font-size: var(--font-size-lg);
        padding: var(--spacing-md) 0;
        width: 100%;
        text-align: center;
    }

    .nav-link--cta {
        margin-top: var(--spacing-md);
    }

    .hero {
        min-height: auto;
        padding-bottom: var(--spacing-2xl);
    }

    .hero-scroll {
        display: none;
    }

    .device-frame {
        width: 240px;
    }

    .terminals-grid,
    .frames-grid,
    .security-grid {
        grid-template-columns: 1fr;
    }

    .form-row {
        grid-template-columns: 1fr;
    }

    .footer-main {
        grid-template-columns: 1fr;
    }

    .footer-links {
        grid-template-columns: repeat(2, 1fr);
    }

    .footer-bottom {
        flex-direction: column;
        gap: var(--spacing-md);
        text-align: center;
    }
}

@media (max-width: 480px) {
    :root {
        --font-size-4xl: 2rem;
        --font-size-3xl: 1.75rem;
    }

    .hero-stats {
        flex-direction: column;
        gap: var(--spacing-lg);
    }

    .stat {
        text-align: center;
    }

    .footer-links {
        grid-template-columns: 1fr;
    }

    .trust-logos {
        flex-direction: column;
        gap: var(--spacing-md);
    }
}

/* Reduced Motion */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        transition-duration: 0.01ms !important;
    }
}