/* ===== MODERN REDESIGN CSS ===== */
:root {
    /* Primary Colors - Clean OS Theme */
    --color-primary: #0f4c75;
    --color-primary-dark: #0a3552;
    --color-primary-light: #1565a0;
    --color-secondary: #6366f1;
    --color-accent: #f43f5e;
    --color-success: #10b981;
    --color-warning: #f59e0b;
    --color-danger: #ef4444;
    
    /* Text */
    --color-text-primary: #111827;
    --color-text-secondary: #6b7280;
    --color-text-tertiary: #9ca3af;
    --color-text-white: #ffffff;
    
    /* Background */
    --color-bg-primary: #ffffff;
    --color-bg-secondary: #f9fafb;
    --color-bg-dark: #0f172a;
    --color-bg-gradient-start: #0f4c75;
    --color-bg-gradient-end: #1565a0;
    
    /* Borders & Shadows */
    --color-border: #e5e7eb;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    
    /* Spacing */
    --space-1: 0.25rem;
    --space-2: 0.5rem;
    --space-3: 0.75rem;
    --space-4: 1rem;
    --space-5: 1.25rem;
    --space-6: 1.5rem;
    --space-8: 2rem;
    --space-10: 2.5rem;
    --space-12: 3rem;
    --space-16: 4rem;
    
    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;
    --radius-full: 9999px;
    
    /* Fonts */
    --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    --font-heading: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

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

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

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    color: var(--color-text-primary);
    background: var(--color-bg-primary);
    line-height: 1.6;
    font-size: 16px;
}

h1, h2, h3, h4, h5, h6 {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    font-weight: 700;
    line-height: 1.2;
    color: var(--color-text-primary);
}

h1 { font-size: clamp(1.75rem, 4vw, 2.5rem); }
h2 { font-size: clamp(2rem, 5vw, 3rem); }
h3 { font-size: clamp(1.5rem, 4vw, 2rem); }
h4 { font-size: clamp(1.25rem, 3vw, 1.5rem); }

a {
    color: var(--color-primary);
    text-decoration: none;
    transition: all 0.3s ease;
}

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

/* ===== UTILITIES ===== */
.visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    border: 0;
}

.container {
    width: 100%;
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 var(--space-6);
}

/* ===== HEADER ===== */
.site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--color-border);
    box-shadow: var(--shadow-sm);
}

.nav-wrapper {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-4) 0;
}

.logo {
    font-size: 1.75rem;
    font-weight: 900;
    color: #000000;
    transition: transform 0.3s ease;
    text-decoration: none;
}

.logo-text {
    color: #000000;
    font-weight: 900;
}

.logo:hover {
    transform: scale(1.05);
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.nav-link {
    padding: var(--space-3) var(--space-4);
    color: var(--color-text-secondary);
    font-weight: 500;
    border-radius: var(--radius-md);
    transition: all 0.3s ease;
}

.nav-link:hover,
.nav-link.active {
    color: var(--color-primary);
    background: rgba(37, 99, 235, 0.1);
}

.nav-auth {
    display: flex;
    gap: var(--space-3);
}

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--space-2);
}

.mobile-menu-btn span {
    display: block;
    width: 26px;
    height: 3px;
    background: var(--color-text-primary);
    margin: 5px 0;
    transition: 0.3s;
    border-radius: 3px;
}

/* ===== BUTTONS ===== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: var(--space-4) var(--space-6);
    font-size: 1rem;
    font-weight: 600;
    border-radius: var(--radius-full);
    border: none;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
    white-space: nowrap;
    line-height: 1;
}

.btn-primary {
    background: var(--color-primary);
    color: white;
    box-shadow: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
}

.btn-primary:hover {
    background: var(--color-primary-dark);
    transform: translateY(-1px);
    box-shadow: 0 2px 4px 0 rgba(0, 0, 0, 0.1);
}

.btn-secondary {
    background: white;
    color: var(--color-text-primary);
    border: 2px solid var(--color-border);
}

.btn-secondary:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
    box-shadow: var(--shadow-md);
}

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

.btn-small {
    padding: var(--space-3) var(--space-5);
    font-size: 0.875rem;
}

.btn-large {
    padding: var(--space-5) var(--space-8);
    font-size: 1.125rem;
}

.btn-block {
    width: 100%;
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.btn-loader {
    width: 18px;
    height: 18px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-top-color: white;
    border-radius: 50%;
    animation: spin 0.6s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

.icon-btn {
    background: none;
    border: none;
    padding: var(--space-2);
    cursor: pointer;
    color: var(--color-text-secondary);
    border-radius: var(--radius-md);
    transition: all 0.3s ease;
}

.icon-btn:hover {
    background: rgba(37, 99, 235, 0.1);
    color: var(--color-primary);
}

/* ===== FORMS ===== */
.form-group {
    margin-bottom: var(--space-5);
}

.form-group label {
    display: block;
    font-weight: 600;
    margin-bottom: var(--space-2);
    color: var(--color-text-primary);
}

.form-input,
.form-select {
    width: 100%;
    padding: var(--space-4);
    font-size: 1rem;
    border: 2px solid var(--color-border);
    border-radius: var(--radius-md);
    background: white;
    transition: all 0.3s ease;
    font-family: var(--font-sans);
}

.form-input:focus,
.form-select:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.form-checkbox {
    width: auto;
    margin-right: var(--space-2);
}

.form-hint {
    font-size: 0.875rem;
    color: var(--color-text-secondary);
    margin-top: var(--space-2);
}

.checkbox-label {
    display: flex;
    align-items: center;
    cursor: pointer;
}

/* ===== HERO SECTION ===== */
.hero-section {
    background: #ffffff;
    color: var(--color-text-primary);
    padding: var(--space-10) 0 var(--space-8) 0;
    position: relative;
    border-bottom: 1px solid var(--color-border);
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 1100px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-8);
    align-items: center;
}

.hero-text {
    text-align: left;
}

.hero-title {
    margin-bottom: var(--space-4);
    font-weight: 900;
    color: var(--color-text-primary);
    line-height: 1.1;
}

.hero-subtitle {
    font-size: clamp(1rem, 2vw, 1.125rem);
    color: var(--color-text-secondary);
    margin-bottom: var(--space-6);
    line-height: 1.6;
}

.hero-visual {
    position: relative;
}

.hero-image {
    width: 100%;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--color-border);
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-3);
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-full);
    font-size: 0.8125rem;
    font-weight: 600;
    color: var(--color-text-secondary);
    margin-bottom: var(--space-4);
}

/* ===== MAIN CONTENT ===== */
.main-content {
    min-height: calc(100vh - 80px);
}

/* ===== CUSTOMIZATION SECTION ===== */
.customization-section {
    padding: var(--space-12) 0;
    background: var(--color-bg-secondary);
}

.customization-section .container {
    max-width: 1100px;
}

.section-title {
    text-align: center;
    font-size: clamp(2rem, 5vw, 3rem);
    margin-bottom: var(--space-12);
    position: relative;
}

.section-title::after {
    content: '';
    display: block;
    width: 80px;
    height: 4px;
    background: linear-gradient(90deg, var(--color-primary), var(--color-secondary));
    margin: var(--space-4) auto 0;
    border-radius: var(--radius-full);
}

.customization-card {
    background: white;
    border-radius: var(--radius-xl);
    margin-bottom: var(--space-8);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: all 0.4s ease;
    border: 1px solid var(--color-border);
}

.customization-card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-8px);
}

.card-header {
    display: flex;
    align-items: center;
    gap: var(--space-4);
    padding: var(--space-6);
    background: linear-gradient(135deg, rgba(14, 165, 233, 0.05), rgba(139, 92, 246, 0.05));
    border-bottom: 1px solid var(--color-border);
}

.step-number {
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 56px;
    height: 56px;
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    color: white;
    border-radius: var(--radius-full);
    font-weight: 900;
    font-size: 1.5rem;
    box-shadow: 0 4px 15px rgba(14, 165, 233, 0.3);
}

.card-header h4 {
    margin: 0;
    font-size: 1.5rem;
}

.card-body {
    padding: var(--space-8);
}

/* ===== SLIDER ===== */
.slider-wrapper {
    display: flex;
    align-items: center;
    gap: var(--space-4);
    margin-top: var(--space-4);
}

.slider {
    flex: 1;
    height: 10px;
    border-radius: var(--radius-full);
    background: linear-gradient(to right, var(--color-border) 0%, var(--color-border) 100%);
    outline: none;
    -webkit-appearance: none;
    cursor: pointer;
}

.slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    cursor: pointer;
    box-shadow: 0 2px 10px rgba(14, 165, 233, 0.4);
    transition: all 0.3s ease;
}

.slider::-webkit-slider-thumb:hover {
    transform: scale(1.2);
    box-shadow: 0 4px 15px rgba(14, 165, 233, 0.5);
}

.slider::-moz-range-thumb {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    cursor: pointer;
    border: none;
    box-shadow: 0 2px 10px rgba(14, 165, 233, 0.4);
}

.slider-value {
    min-width: 50px;
    font-weight: 900;
    font-size: 1.5rem;
    text-align: center;
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ===== PARTICIPANT GRID ===== */
.participant-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
    gap: var(--space-4);
    margin-top: var(--space-6);
}

.participant-card {
    background: linear-gradient(135deg, rgba(14, 165, 233, 0.05), rgba(139, 92, 246, 0.05));
    border: 2px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--space-5);
    text-align: center;
    transition: all 0.3s ease;
    cursor: pointer;
    position: relative;
}

.participant-card:hover {
    border-color: var(--color-primary);
    transform: translateY(-8px) scale(1.05);
    box-shadow: var(--shadow-lg);
}

.participant-card .upload-badge {
    position: absolute;
    top: 8px;
    right: 8px;
    background: var(--color-primary);
    color: white;
    width: 28px;
    height: 28px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    box-shadow: 0 2px 8px rgba(14, 165, 233, 0.4);
    transition: all 0.2s ease;
}

.participant-card:hover .upload-badge {
    transform: scale(1.1);
    background: var(--color-secondary);
}

.participant-card.has-media {
    border-color: var(--color-success);
    background: linear-gradient(135deg, rgba(34, 197, 94, 0.05), rgba(14, 165, 233, 0.05));
}

.participant-card.has-media .upload-badge {
    background: var(--color-success);
}

.participant-initials,
.participant-media-wrapper {
    width: 90px;
    height: 90px;
    border-radius: 50%;
    margin: 0 auto var(--space-3);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2), 0 0 0 3px rgba(255, 255, 255, 0.3);
    position: relative;
    overflow: hidden;
}

.participant-initials {
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    color: white;
    font-weight: 900;
    font-size: 2rem;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

.participant-media-wrapper {
    background: linear-gradient(135deg, #f0f0f0, #e0e0e0);
    display: flex;
    align-items: center;
    justify-content: center;
}

.participant-avatar-image,
.participant-avatar-video {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 50%;
}

.participant-avatar-image {
    transition: transform 0.3s ease;
}

.participant-card:hover .participant-avatar-image {
    transform: scale(1.05);
}

.participant-name {
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-text-primary);
}

/* ===== UPLOAD COMPONENTS ===== */
.upload-area {
    margin-top: 1rem;
    display: flex;
    gap: 0.75rem;
    align-items: center;
    flex-wrap: wrap;
}

.upload-preview {
    width: 100%;
    min-height: 120px;
    border: 2px dashed var(--color-border);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(14, 165, 233, 0.02);
    margin-bottom: 0.75rem;
    cursor: pointer;
    transition: all 0.3s ease;
    overflow: hidden;
}

.upload-preview:hover {
    border-color: var(--color-primary);
    background: rgba(14, 165, 233, 0.05);
}

.upload-preview img,
.upload-preview video {
    max-width: 100%;
    max-height: 200px;
    border-radius: var(--radius-md);
}

.upload-placeholder {
    text-align: center;
    padding: 1.5rem;
    color: var(--color-text-secondary);
}

.upload-placeholder svg {
    color: var(--color-primary);
    margin-bottom: 0.5rem;
}

.upload-placeholder p {
    margin: 0.5rem 0 0.25rem;
    font-weight: 600;
    color: var(--color-text-primary);
}

.upload-placeholder small {
    font-size: 0.75rem;
    color: var(--color-text-secondary);
}

.upload-drop-area {
    border: 3px dashed var(--color-border);
    border-radius: var(--radius-lg);
    padding: 3rem 2rem;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s ease;
    background: rgba(14, 165, 233, 0.02);
}

.upload-drop-area:hover,
.upload-drop-area.drag-over {
    border-color: var(--color-primary);
    background: rgba(14, 165, 233, 0.08);
    transform: scale(1.02);
}

.upload-icon {
    font-size: 4rem;
    margin-bottom: 1rem;
}

.upload-drop-area h4 {
    margin: 0.5rem 0;
    color: var(--color-text-primary);
}

.upload-drop-area p {
    margin: 0.5rem 0;
    color: var(--color-text-secondary);
}

.upload-drop-area small {
    display: block;
    margin-top: 0.5rem;
    color: var(--color-text-tertiary);
    font-size: 0.875rem;
}

.upload-preview-container {
    text-align: center;
    padding: 1rem;
}

.upload-preview-container img,
.upload-preview-container video {
    margin-bottom: 1rem;
    box-shadow: var(--shadow-md);
}

.upload-tabs {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
    border-bottom: 2px solid var(--color-border);
}

.upload-tab {
    flex: 1;
    padding: 0.75rem 1.5rem;
    border: none;
    background: transparent;
    color: var(--color-text-secondary);
    font-weight: 600;
    cursor: pointer;
    border-bottom: 3px solid transparent;
    margin-bottom: -2px;
    transition: all 0.2s ease;
    font-size: 1rem;
}

.upload-tab:hover {
    color: var(--color-primary);
    background: rgba(14, 165, 233, 0.05);
}

.upload-tab.active {
    color: var(--color-primary);
    border-bottom-color: var(--color-primary);
}

.tab-content {
    animation: fadeIn 0.3s ease;
}

.customization-note {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem 1.25rem;
    background: linear-gradient(135deg, rgba(14, 165, 233, 0.08), rgba(139, 92, 246, 0.08));
    border-radius: var(--radius-lg);
    margin: 1rem 0;
    border-left: 4px solid var(--color-primary);
}

.customization-note span {
    color: var(--color-text-primary);
    font-weight: 500;
    font-size: 0.9375rem;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ===== TOGGLE GROUP ===== */
.toggle-group {
    display: inline-flex;
    border: 2px solid var(--color-border);
    border-radius: var(--radius-full);
    overflow: hidden;
    background: white;
}

.toggle-btn {
    padding: var(--space-3) var(--space-6);
    border: none;
    background: transparent;
    color: var(--color-text-secondary);
    cursor: pointer;
    transition: all 0.3s ease;
    font-weight: 600;
}

.toggle-btn.active {
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    color: white;
}

.toggle-btn:hover:not(.active) {
    background: rgba(14, 165, 233, 0.1);
    color: var(--color-primary);
}

/* ===== FEATURES SECTION ===== */
.features-section {
    padding: var(--space-16) 0;
    background: white;
}

.features-wrapper {
    display: grid;
    grid-template-columns: 3fr 2fr;
    gap: 3rem;
    align-items: center;
}

.features-grid-left {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.25rem;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--space-8);
}

.feature-card {
    text-align: center;
    padding: 1rem 1rem 1.25rem;
    background: linear-gradient(135deg, rgba(14, 165, 233, 0.03), rgba(139, 92, 246, 0.03));
    border-radius: var(--radius-xl);
    border: 1px solid var(--color-border);
    transition: all 0.4s ease;
}

.feature-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
    border-color: var(--color-primary);
}

.feature-icon {
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.feature-icon svg {
    width: 32px;
    height: 32px;
    stroke: var(--color-primary);
}

.feature-card h4 {
    margin-bottom: 0.4rem;
    font-size: 1rem;
    color: var(--color-text);
}

.feature-card p {
    color: var(--color-text-secondary);
    font-size: 0.8rem;
    line-height: 1.5;
    margin: 0;
}

.features-image {
    display: flex;
    justify-content: center;
    align-items: center;
}

.features-hero-img {
    max-width: 100%;
    height: auto;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
}

/* Features Section Responsive */
@media (max-width: 1200px) {
    .features-wrapper {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .features-image {
        order: -1;
    }
    
    .features-hero-img {
        max-width: 500px;
    }
    
    .features-grid-left {
        grid-template-columns: repeat(2, 1fr);
        gap: 1rem;
    }
}

@media (max-width: 768px) {
    .features-section {
        padding: var(--space-12) 0;
    }
    
    .section-title {
        font-size: 1.75rem;
        margin-bottom: 2rem;
        text-align: center;
    }
    
    .features-wrapper {
        gap: 2.5rem;
    }
    
    .features-grid-left {
        grid-template-columns: repeat(2, 1fr);
        gap: 1rem;
    }
    
    .feature-card {
        padding: 1.25rem 1rem;
    }
    
    .feature-card h4 {
        font-size: 0.9375rem;
    }
    
    .feature-card p {
        font-size: 0.75rem;
    }
    
    .feature-icon svg {
        width: 28px;
        height: 28px;
    }
    
    .features-hero-img {
        max-width: 100%;
    }
}

@media (max-width: 640px) {
    .features-section {
        padding: var(--space-10) 0;
    }
    
    .section-title {
        font-size: 1.5rem;
        margin-bottom: 1.5rem;
        padding: 0 1rem;
    }
    
    .features-grid-left {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .feature-card {
        padding: 1.5rem 1.25rem;
    }
    
    .feature-card h4 {
        font-size: 1rem;
    }
    
    .feature-card p {
        font-size: 0.8125rem;
        line-height: 1.6;
    }
    
    .feature-icon svg {
        width: 32px;
        height: 32px;
    }
}

@media (max-width: 480px) {
    .features-section {
        padding: var(--space-8) 0;
    }
    
    .section-title {
        font-size: 1.375rem;
        margin-bottom: 1.25rem;
    }
    
    .features-wrapper {
        gap: 2rem;
    }
    
    .feature-card {
        padding: 1.25rem 1rem;
    }
    
    .feature-card h4 {
        font-size: 0.9375rem;
        margin-bottom: 0.5rem;
    }
    
    .feature-card p {
        font-size: 0.8rem;
    }
}

/* ===== ACTION SECTION ===== */
.action-section {
    text-align: center;
    margin-top: var(--space-12);
    padding: var(--space-12) 0;
    background: linear-gradient(135deg, rgba(14, 165, 233, 0.05), rgba(139, 92, 246, 0.05));
    border-radius: var(--radius-2xl);
}

.premium-note {
    margin-top: var(--space-4);
    color: var(--color-text-secondary);
    font-size: 1rem;
}

/* ===== FOOTER ===== */
.site-footer {
    background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
    color: rgba(255, 255, 255, 0.8);
    padding: 4rem 0 0;
    margin-top: 6rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-content {
    padding-bottom: 3rem;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 3rem;
    margin-bottom: 2rem;
}

.footer-column {
    display: flex;
    flex-direction: column;
}

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

.footer-logo {
    margin-bottom: 1.25rem;
}

.footer-logo img {
    max-width: 180px;
    height: auto;
    filter: brightness(0) invert(1);
}

.footer-tagline {
    font-size: 0.9375rem;
    line-height: 1.6;
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 1rem;
}

.footer-email {
    display: inline-flex;
    align-items: center;
    font-size: 0.9375rem;
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    margin-bottom: 1.5rem;
    padding: 0.5rem 0;
    transition: color 0.2s ease;
}

.footer-email:hover {
    color: var(--color-primary-light);
}

.footer-social {
    display: flex;
    gap: 0.75rem;
    padding-top: 1rem;
}

.social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 10px;
    color: rgba(255, 255, 255, 0.8);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.social-link:hover {
    background: var(--color-primary);
    color: white;
    transform: translateY(-3px);
    box-shadow: 0 8px 16px rgba(14, 165, 233, 0.3);
    border-color: var(--color-primary);
}

.footer-title {
    color: white;
    font-size: 0.9375rem;
    font-weight: 700;
    margin-bottom: 1.25rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.footer-links {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.footer-links li {
    margin: 0;
}

.footer-links a {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.9375rem;
    transition: all 0.2s ease;
    display: inline-flex;
    align-items: center;
    position: relative;
    padding-left: 0;
}

.footer-links a::before {
    content: '';
    position: absolute;
    left: -12px;
    width: 6px;
    height: 2px;
    background: var(--color-primary);
    opacity: 0;
    transition: all 0.2s ease;
}

.footer-links a:hover {
    color: var(--color-primary-light);
    padding-left: 12px;
}

.footer-links a:hover::before {
    opacity: 1;
    left: 0;
}

.footer-bottom {
    padding: 1.5rem 0;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    background: rgba(0, 0, 0, 0.3);
}

.footer-bottom-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1.5rem;
}

.footer-copyright {
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.875rem;
    margin: 0;
    font-weight: 400;
}

.footer-bottom-links {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.footer-bottom-links a {
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.875rem;
    transition: color 0.2s ease;
    font-weight: 400;
}

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

.footer-divider {
    color: rgba(255, 255, 255, 0.3);
    font-size: 0.75rem;
    user-select: none;
}

/* ===== MODALS ===== */
.modal {
    display: none;
    position: fixed;
    inset: 0;
    z-index: 1000;
    align-items: center;
    justify-content: center;
    padding: var(--space-6);
}

.modal.active {
    display: flex;
}

.modal-overlay {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(8px);
}

.modal-content {
    position: relative;
    background: white;
    border-radius: var(--radius-2xl);
    padding: 1.5rem;
    max-width: 420px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: var(--shadow-xl);
    animation: modalZoomIn 0.3s ease;
}

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

.modal-close {
    position: absolute;
    top: var(--space-4);
    right: var(--space-4);
    width: 40px;
    height: 40px;
    border-radius: var(--radius-full);
    background: var(--color-bg-secondary);
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
}

.modal-close:hover {
    background: var(--color-danger);
    color: white;
    transform: rotate(90deg);
}

.modal-content h3 {
    font-size: 1.5rem;
    margin-bottom: 0.75rem;
}

.modal-list {
    list-style: none;
    margin: 1rem 0;
}

.modal-list li {
    padding: 0.5rem 0;
    color: var(--color-text-secondary);
    font-size: 0.9375rem;
}

.modal-actions {
    display: flex;
    gap: var(--space-4);
    margin-top: var(--space-6);
}

/* ===== COOKIE CONSENT ===== */
.cookie-consent {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: var(--color-bg-dark);
    color: white;
    padding: var(--space-5);
    z-index: 999;
    box-shadow: var(--shadow-xl);
    animation: slideUp 0.5s ease;
}

@keyframes slideUp {
    from { transform: translateY(100%); }
    to { transform: translateY(0); }
}

.cookie-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-4);
    max-width: 1280px;
    margin: 0 auto;
}

/* ===== RESPONSIVE ===== */
@media (max-width: 992px) {
    .participant-grid {
        grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
    }
}

@media (max-width: 768px) {
    .mobile-menu-btn {
        display: block;
    }
    
    .nav-menu {
        position: fixed;
        top: 75px;
        left: -100%;
        width: 100%;
        max-width: 350px;
        height: calc(100vh - 75px);
        background: white;
        flex-direction: column;
        align-items: stretch;
        padding: var(--space-6);
        transition: left 0.3s ease;
        border-right: 1px solid var(--color-border);
        box-shadow: var(--shadow-xl);
        overflow-y: auto;
    }
    
    .hero-content {
        grid-template-columns: 1fr;
        gap: var(--space-8);
    }
    
    .hero-text {
        text-align: center;
    }
    
    .hero-text > div[style*="flex"] {
        justify-content: center;
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .nav-link {
        width: 100%;
        padding: var(--space-4);
    }
    
    .nav-auth {
        flex-direction: column;
        margin-top: var(--space-4);
        padding-top: var(--space-4);
        border-top: 1px solid var(--color-border);
    }
    
    .nav-auth .btn {
        width: 100%;
    }
    
    .hero-section {
        padding: var(--space-12) 0;
    }
    
    .customization-section,
    .features-section {
        padding: var(--space-12) 0;
    }
    
    .card-body {
        padding: var(--space-6);
    }
    
    .modal-actions {
        flex-direction: column;
    }
    
    .cookie-content {
        flex-direction: column;
        text-align: center;
    }
    
    .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 2rem;
    }
    
    .footer-brand {
        grid-column: 1 / -1;
        max-width: 100%;
    }
    
    .footer-bottom-content {
        flex-direction: column;
        text-align: center;
        gap: 1rem;
    }
    
    .footer-bottom-links {
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .participant-grid {
        grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
    }
    
    .participant-avatar,
    .participant-initials {
        width: 65px;
        height: 65px;
        font-size: 1.5rem;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .footer-brand {
        grid-column: auto;
    }
    
    .footer-bottom-links {
        gap: 0.75rem;
        font-size: 0.8125rem;
    }
    
    .footer-divider {
        font-size: 0.625rem;
    }
}