/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', sans-serif;
    line-height: 1.6;
    color: #2C3E50;
    background-color: #F8FBFF;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* Header Styles */
.header {
    background-color: #FFFFFF;
    border-bottom: 1px solid #E5E7EB;
    padding: 1rem 0;
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.header-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

/* Logo Styles */
.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    transition: transform 0.3s ease;
}

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

.logo-icon {
    width: 32px;
    height: 32px;
    border-radius: 8px;
    overflow: hidden;
    transition: all 0.3s ease;
}

.logo-icon img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.logo-text {
    font-family: 'Poppins', sans-serif;
    font-size: 1.5rem;
    font-weight: 700;
    color: #0a7ea4;
    transition: color 0.3s ease;
}

.logo:hover .logo-text {
    color: #174872;
}

/* Navigation Styles */
.nav-list {
    display: flex;
    list-style: none;
    gap: 2rem;
    align-items: center;
}

.nav-link {
    text-decoration: none;
    color: #6B7280;
    font-weight: 500;
    transition: all 0.3s ease;
    position: relative;
    padding: 0.5rem 0;
}

.nav-link:hover {
    color: #0a7ea4;
    transform: translateY(-2px);
}

.nav-link.active {
    color: #0a7ea4;
    font-weight: 600;
    position: relative;
}

.nav-link.active::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background: linear-gradient(90deg, #0a7ea4, #174872);
    border-radius: 1px;
    animation: slideIn 0.3s ease;
}

@keyframes slideIn {
    from {
        width: 0;
    }
    to {
        width: 100%;
    }
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: #0a7ea4;
    transition: width 0.3s ease;
}

.nav-link:hover::after {
    width: 100%;
}

/* CTA Button */
.cta-button {
    background: linear-gradient(135deg, #0a7ea4 0%, #174872 100%);
    color: white;
    border: none;
    padding: 0.75rem 1.5rem;
    border-radius: 0.5rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(10, 126, 164, 0.3);
}

.cta-button:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(10, 126, 164, 0.4);
    background: linear-gradient(135deg, #174872 0%, #0a7ea4 100%);
}

.cta-button:active {
    transform: translateY(-1px);
}

/* Button Styles */
.btn-primary {
    background-color: #0a7ea4;
    color: white;
    border: none;
    padding: 0.875rem 1.75rem;
    border-radius: 0.5rem;
    font-family: 'Poppins', sans-serif;
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    transition: all 0.2s ease;
    text-decoration: none;
    display: inline-block;
}

.btn-primary:hover {
    background-color: #174872;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(10, 126, 164, 0.3);
}

.btn-secondary {
    background-color: transparent;
    color: #0a7ea4;
    border: 2px solid #0a7ea4;
    padding: 0.875rem 1.75rem;
    border-radius: 0.5rem;
    font-family: 'Poppins', sans-serif;
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    transition: all 0.2s ease;
    text-decoration: none;
    display: inline-block;
}

.btn-secondary:hover {
    background-color: #0a7ea4;
    color: white;
    transform: translateY(-2px);
}

.btn-accent {
    background-color: #fadf47;
    color: #2C3E50;
    border: none;
    padding: 0.875rem 1.75rem;
    border-radius: 0.5rem;
    font-family: 'Poppins', sans-serif;
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    transition: all 0.2s ease;
    text-decoration: none;
    display: inline-block;
}

.btn-accent:hover {
    background-color: #f4d03f;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(250, 223, 71, 0.3);
}

.btn-large {
    padding: 1rem 2rem;
    font-size: 1.125rem;
}

/* Hero Section */
.hero {
    padding: 6rem 0 4rem;
    background: linear-gradient(135deg, #F8FBFF 0%, #E8F4FD 50%, #F0F9FF 100%);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grid" width="10" height="10" patternUnits="userSpaceOnUse"><path d="M 10 0 L 0 0 0 10" fill="none" stroke="%230a7ea4" stroke-width="0.5" opacity="0.1"/></pattern></defs><rect width="100" height="100" fill="url(%23grid)"/></svg>');
    opacity: 0.3;
}

.hero-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero-content {
    animation: fadeInUp 1s ease-out;
}

.hero-title {
    font-family: 'Poppins', sans-serif;
    font-size: 3.5rem;
    font-weight: 700;
    color: #2C3E50;
    margin-bottom: 1.5rem;
    line-height: 1.2;
}

.text-gradient {
    background: linear-gradient(135deg, #0a7ea4 0%, #174872 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-description {
    font-size: 1.25rem;
    color: #6B7280;
    margin-bottom: 2rem;
    line-height: 1.6;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    margin-bottom: 3rem;
}

.hero-stats {
    display: flex;
    gap: 2rem;
}

.stat-item {
    text-align: center;
    animation: fadeInUp 1s ease-out 0.3s both;
}

.stat-number {
    display: block;
    font-size: 2rem;
    font-weight: 700;
    color: #0a7ea4;
    margin-bottom: 0.5rem;
}

.stat-label {
    color: #6B7280;
    font-size: 0.875rem;
    font-weight: 500;
}

/* Hero Visual */
.hero-visual {
    animation: fadeInRight 1s ease-out 0.5s both;
}

.app-preview {
    position: relative;
}

.phone-mockup {
    width: 300px;
    height: 600px;
    background: linear-gradient(145deg, #2C3E50, #34495E);
    border-radius: 2rem;
    padding: 1rem;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.2);
    position: relative;
    margin: 0 auto;
}

.phone-mockup::before {
    content: '';
    position: absolute;
    top: -2px;
    left: -2px;
    right: -2px;
    bottom: -2px;
    background: linear-gradient(45deg, #0a7ea4, #174872, #fadf47);
    border-radius: 2.2rem;
    z-index: -1;
    opacity: 0.3;
}

.phone-screen {
    background: white;
    border-radius: 1.5rem;
    height: 100%;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.app-header {
    text-align: center;
    padding-bottom: 1rem;
    border-bottom: 1px solid #E5E7EB;
}

.app-time {
    font-size: 1.5rem;
    font-weight: 700;
    color: #2C3E50;
    margin-bottom: 0.5rem;
}

.app-status {
    color: #0a7ea4;
    font-size: 0.875rem;
    font-weight: 500;
}

.sleep-chart {
    display: flex;
    align-items: end;
    gap: 0.5rem;
    height: 200px;
    padding: 1rem 0;
}

.chart-bar {
    flex: 1;
    background: linear-gradient(to top, #0a7ea4, #174872);
    border-radius: 0.25rem 0.25rem 0 0;
    transition: all 0.3s ease;
    animation: chartGrow 2s ease-out 1s both;
}

.chart-bar:hover {
    transform: scaleY(1.1);
    box-shadow: 0 4px 15px rgba(10, 126, 164, 0.3);
}

/* Schedule Comparison Section */
.schedule-comparison {
    padding: 5rem 0;
    background: #F8FBFF;
    position: relative;
    overflow: hidden;
}

.schedule-comparison::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="dots" width="20" height="20" patternUnits="userSpaceOnUse"><circle cx="10" cy="10" r="1" fill="%230a7ea4" opacity="0.03"/></pattern></defs><rect width="100" height="100" fill="url(%23dots)"/></svg>');
    opacity: 0.5;
    z-index: 0;
}

.comparison-content {
    display: block;
    position: relative;
    z-index: 1;
}

.comparison-text {
    order: 1;
}

.comparison-visual {
    order: 2;
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
    padding: 2rem;
}

.comparison-visual-top {
    order: 0;
    margin-bottom: 3rem;
    padding: 1rem;
}

.comparison-visual::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 200px;
    height: 200px;
    background: radial-gradient(circle, rgba(10, 126, 164, 0.05) 0%, rgba(23, 72, 114, 0.03) 100%);
    border-radius: 50%;
    z-index: -1;
}

.comparison-visual::after {
    content: '';
    position: absolute;
    top: 20%;
    right: 10%;
    width: 60px;
    height: 60px;
    background: radial-gradient(circle, rgba(10, 126, 164, 0.1) 0%, transparent 70%);
    border-radius: 50%;
    z-index: -1;
    animation: float 6s ease-in-out infinite;
}

.comparison-image {
    max-width: 60%;
    height: auto;
    border-radius: 0.5rem;
    opacity: 0.9;
    mix-blend-mode: multiply;
    filter: brightness(1.1) contrast(1.1);
    position: relative;
    z-index: 2;
    transition: all 0.3s ease;
}

.comparison-image:hover {
    transform: scale(1.05);
    opacity: 1;
}

.comparison-header {
    margin-bottom: 3rem;
    text-align: center;
}

.comparison-title {
    font-size: 2.5rem;
    font-weight: 700;
    color: #2C3E50;
    margin-bottom: 1.5rem;
    line-height: 1.2;
}

.highlight-green {
    color: #10B981;
}

.comparison-subtitle {
    font-size: 1.125rem;
    color: #6B7280;
    line-height: 1.6;
}

.comparison-table {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    margin-bottom: 3rem;
    position: relative;
}

.comparison-table::before {
    content: '';
    position: absolute;
    top: -20px;
    left: -20px;
    width: 40px;
    height: 40px;
    background: radial-gradient(circle, rgba(10, 126, 164, 0.1) 0%, transparent 70%);
    border-radius: 50%;
    z-index: -1;
    animation: float 5s ease-in-out infinite;
}

.comparison-column {
    background: white;
    padding: 2rem;
    border-radius: 1rem;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
}

.column-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 2rem;
}

.header-icon {
    width: 40px;
    height: 40px;
    background: #F3F4F6;
    border-radius: 0.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #6B7280;
}

.current-schedule .header-icon {
    background: #FF6B6B;
}

.optimized-schedule .header-icon {
    background: #7DBF7A;
}

.column-header h3 {
    color: #2C3E50;
    font-size: 1.25rem;
    margin: 0;
}

.schedule-items {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.schedule-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem;
    background: #F9FAFB;
    border-radius: 0.5rem;
}

.current-schedule .schedule-item {
    background: #FEF2F2;
    border-left: 4px solid #FF6B6B;
}

.optimized-schedule .schedule-item {
    background: #F0FDF4;
    border-left: 4px solid #7DBF7A;
}

.schedule-item:hover {
    transform: translateX(5px);
}

.time {
    background: #0a7ea4;
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 0.5rem;
    font-weight: 600;
    font-size: 0.875rem;
    white-space: nowrap;
}

.activity {
    flex: 1;
    color: #4B5563;
    font-size: 0.9rem;
}

.indicator {
    width: 12px;
    height: 12px;
    border-radius: 50%;
}

.indicator.red {
    background: #EF4444;
}

.indicator.green {
    background: #10B981;
}

.comparison-cta {
    text-align: center;
}

.btn-accent {
    background: linear-gradient(135deg, #fadf47 0%, #FFA500 100%);
    color: #174872;
    border: none;
    padding: 1rem 2rem;
    border-radius: 0.5rem;
    font-weight: 600;
    font-size: 1.125rem;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(250, 223, 71, 0.3);
}

.btn-accent:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(250, 223, 71, 0.4);
    background: linear-gradient(135deg, #FFA500 0%, #fadf47 100%);
}

.btn-large {
    padding: 1.25rem 2.5rem;
    font-size: 1.25rem;
}

/* Common Struggles Section */
.common-struggles {
    padding: 5rem 0;
    background: #F8FBFF;
}

.struggles-header {
    text-align: center;
    margin-bottom: 4rem;
}

.struggles-title {
    font-family: 'Poppins', sans-serif;
    font-size: 2.5rem;
    font-weight: 700;
    color: #2C3E50;
    margin-bottom: 1rem;
}

.struggles-subtitle {
    font-size: 1.125rem;
    color: #6B7280;
    max-width: 600px;
    margin: 0 auto;
}

.struggles-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.struggle-card {
    background: white;
    padding: 2rem;
    border-radius: 1rem;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
    text-align: center;
}

.struggle-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.15);
}

.struggle-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, #FF6B6B, #FF8E8E);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    color: white;
    transition: all 0.3s ease;
}

.struggle-card:hover .struggle-icon {
    transform: scale(1.1) rotate(5deg);
}

.struggle-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: #2C3E50;
    margin-bottom: 1rem;
}

.struggle-description {
    color: #6B7280;
    line-height: 1.6;
}

/* Section Styles */
.section-title {
    font-family: 'Poppins', sans-serif;
    font-size: 2.5rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 3rem;
    color: #2C3E50;
}

/* How It Works Section */
.how-it-works {
    padding: 5rem 0;
    background: white;
    overflow: hidden;
    position: relative;
}

.how-it-works::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="lines" width="30" height="30" patternUnits="userSpaceOnUse"><line x1="0" y1="15" x2="30" y2="15" stroke="%23fadf47" stroke-width="0.5" opacity="0.04"/></pattern></defs><rect width="100" height="100" fill="url(%23lines)"/></svg>');
    opacity: 0.6;
    z-index: 0;
}

.steps-content {
    display: block;
    position: relative;
    z-index: 1;
}

.steps-text {
    order: 2;
}

.steps-visual {
    order: 1;
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
    padding: 2rem;
}

.steps-visual-top {
    order: 0;
    margin-bottom: 3rem;
    padding: 1rem;
}

.steps-visual::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 180px;
    height: 180px;
    background: radial-gradient(circle, rgba(250, 223, 71, 0.08) 0%, rgba(255, 165, 0, 0.05) 100%);
    border-radius: 50%;
    z-index: -1;
}

.steps-visual::after {
    content: '';
    position: absolute;
    bottom: 20%;
    left: 15%;
    width: 40px;
    height: 40px;
    background: radial-gradient(circle, rgba(250, 223, 71, 0.15) 0%, transparent 70%);
    border-radius: 50%;
    z-index: -1;
    animation: float 8s ease-in-out infinite reverse;
}

.steps-image {
    max-width: 50%;
    height: auto;
    border-radius: 0.5rem;
    opacity: 0.9;
    mix-blend-mode: multiply;
    filter: brightness(1.1) contrast(1.1);
    position: relative;
    z-index: 2;
    transition: all 0.3s ease;
}

.steps-image:hover {
    transform: scale(1.05);
    opacity: 1;
}

.steps-header {
    margin-bottom: 3rem;
    text-align: center;
}

.steps-title {
    font-size: 2.5rem;
    font-weight: 700;
    color: #2C3E50;
    margin-bottom: 1.5rem;
    line-height: 1.2;
}

.steps-subtitle {
    font-size: 1.125rem;
    color: #6B7280;
    line-height: 1.6;
}

.steps-container {
    position: relative;
    margin-top: 2rem;
}

.steps-grid {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 2.5rem;
    align-items: stretch;
}

.step-card {
    background: white;
    padding: 2rem;
    padding-top: 3rem;
    border-radius: 1rem;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    border: 2px solid #E5E7EB;
    transition: all 0.3s ease;
    position: relative;
    overflow: visible;
    height: 100%;
    display: flex;
    flex-direction: column;
    margin-top: 1.5rem;
}

.step-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, #0a7ea4, #174872);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.step-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.12);
    border-color: #0a7ea4;
}

.step-number {
    position: absolute;
    top: -20px;
    left: 2rem;
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, #0a7ea4, #174872);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1.25rem;
    box-shadow: 0 4px 15px rgba(10, 126, 164, 0.3);
    z-index: 10;
}

.step-card:hover .step-number {
    transform: scale(1.1) rotate(360deg);
}

.step-title {
    color: #2C3E50;
    font-size: 1.5rem;
    margin-bottom: 1rem;
    margin-top: 1rem;
}

.step-description {
    color: #6B7280;
    margin-bottom: 1.5rem;
    line-height: 1.6;
    flex: 1;
}

.step-content-box {
    background: #F8FBFF;
    padding: 1.5rem;
    border-radius: 0.75rem;
    margin-bottom: 1.5rem;
    border: 1px solid #E5E7EB;
    flex: 1;
}

.content-title {
    font-weight: 600;
    color: #2C3E50;
    margin-bottom: 1rem;
    font-size: 1rem;
}

.question {
    color: #4B5563;
    margin-bottom: 1rem;
    font-weight: 500;
}

.radio-options {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.radio-option {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    cursor: pointer;
}

.radio-option input[type="radio"] {
    transform: scale(1.2);
}

.radio-text {
    color: #2C3E50;
    font-weight: 500;
}

.schedule-list {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.schedule-list .schedule-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.75rem;
    background: white;
    border-radius: 0.5rem;
    border: 1px solid #E5E7EB;
}

.schedule-list .schedule-item:last-child {
    border-bottom: none;
}

.activity-name {
    color: #2C3E50;
    font-weight: 500;
}

.activity-time {
    color: #0a7ea4;
    font-weight: 600;
    font-size: 0.875rem;
}

.integrations-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.75rem;
}

.integration-item {
    background: white;
    padding: 0.75rem;
    border-radius: 0.5rem;
    border: 1px solid #E5E7EB;
    color: #6B7280;
    font-size: 0.875rem;
    text-align: center;
    transition: all 0.2s ease;
}

.integration-item:hover {
    border-color: #0a7ea4;
    color: #0a7ea4;
}

.step-btn {
    width: 100%;
    margin-top: auto;
    margin-top: 1rem;
}

.step-connector {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #0a7ea4;
    z-index: 1;
    width: 2rem;
    height: 2rem;
    background: white;
    border-radius: 50%;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.connector-1 {
    left: calc(33.333% - 1rem);
}

.connector-2 {
    left: calc(66.666% - 1rem);
}

.step-connector svg {
    width: 2rem;
    height: 2rem;
}

/* Responsive adjustments for steps */
@media (min-width: 768px) {
    .steps-grid {
        gap: 1rem;
    }
    
    .step-card {
        max-width: 350px;
    }
}

/* Ensure cards stay in a row on all screen sizes */
@media (max-width: 1200px) {
    .steps-grid {
        grid-template-columns: 1fr 1fr 1fr;
        gap: 1rem;
    }
    
    .step-card {
        min-width: 0;
        padding: 1.5rem;
    }
    
    .connector-1 {
        left: calc(33.333% - 0.5rem);
    }
    
    .connector-2 {
        left: calc(66.666% - 0.5rem);
    }
}

@media (max-width: 1024px) {
    .steps-grid {
        grid-template-columns: 1fr 1fr 1fr;
        gap: 1rem;
    }
    
    .step-card {
        padding: 1.25rem;
    }
}

@media (max-width: 768px) {
    .steps-grid {
        grid-template-columns: 1fr 1fr 1fr;
        gap: 0.75rem;
        overflow-x: auto;
        padding-bottom: 1rem;
    }
    
    .step-card {
        min-width: 280px;
        padding: 1.25rem;
    }
    
    .step-connector {
        display: none;
    }
}

/* Features Section */
.features {
    padding: 5rem 0;
    background: #F8FBFF;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.feature-card {
    background: white;
    padding: 2rem;
    border-radius: 1rem;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
    text-align: center;
}

.feature-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.15);
}

.feature-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, #0a7ea4, #174872);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    color: white;
    transition: all 0.3s ease;
}

.feature-card:hover .feature-icon {
    transform: scale(1.1) rotate(5deg);
}

.feature-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: #2C3E50;
    margin-bottom: 1rem;
}

.feature-description {
    color: #6B7280;
    line-height: 1.6;
}

/* Science Section */
.science {
    padding: 5rem 0;
    background: #F8FBFF;
}

.science-content {
    display: block;
    margin-bottom: 4rem;
}

.science-text {
    order: 1;
}

.science-visual {
    order: 2;
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
    padding: 2rem;
}

.science-visual-top {
    order: 0;
    margin-bottom: 3rem;
    padding: 1rem;
}

.science-visual::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 190px;
    height: 190px;
    background: radial-gradient(circle, rgba(16, 185, 129, 0.06) 0%, rgba(5, 150, 105, 0.04) 100%);
    border-radius: 50%;
    z-index: -1;
}

.science-visual::after {
    content: '';
    position: absolute;
    top: 30%;
    left: 20%;
    width: 50px;
    height: 50px;
    background: radial-gradient(circle, rgba(16, 185, 129, 0.12) 0%, transparent 70%);
    border-radius: 50%;
    z-index: -1;
    animation: float 7s ease-in-out infinite;
}

.science-image {
    max-width: 55%;
    height: auto;
    border-radius: 0.5rem;
    opacity: 0.9;
    mix-blend-mode: multiply;
    filter: brightness(1.1) contrast(1.1);
    position: relative;
    z-index: 2;
    transition: all 0.3s ease;
}

.science-image:hover {
    transform: scale(1.05);
    opacity: 1;
}

.section-subtitle {
    text-align: center;
    font-size: 1.125rem;
    color: #6B7280;
    margin-bottom: 3rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* Light Comparison */
.light-comparison {
    margin: 4rem 0;
}

.comparison-title {
    text-align: center;
    font-size: 1.75rem;
    margin-bottom: 3rem;
    color: #2C3E50;
}

.comparison-container {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    gap: 2rem;
    align-items: center;
    max-width: 1000px;
    margin: 0 auto;
}

.comparison-card {
    background: white;
    padding: 2rem;
    border-radius: 1rem;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
    border: 2px solid transparent;
}

.comparison-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.12);
}

.comparison-card.natural-light {
    border-color: #10B981;
}

.comparison-card.artificial-light {
    border-color: #F59E0B;
}

.card-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.light-icon {
    font-size: 2rem;
}

.card-header h4 {
    color: #2C3E50;
    font-size: 1.25rem;
    margin: 0;
}

.light-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
    margin-bottom: 1.5rem;
}

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

.stat-number2 {
    display: block;
    font-size: 1.5rem;
    font-weight: 700;
    color: #0a7ea4;
    margin-bottom: 0.25rem;
}

.stat-label {
    font-size: 0.875rem;
    color: #6B7280;
}

.card-benefits h5, .card-issues h5 {
    color: #2C3E50;
    margin-bottom: 0.75rem;
    font-size: 1rem;
}

.card-benefits ul, .card-issues ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.card-benefits li, .card-issues li {
    color: #6B7280;
    margin-bottom: 0.5rem;
    font-size: 0.9rem;
    position: relative;
    padding-left: 1.25rem;
}

.card-benefits li:before {
    content: "✓";
    color: #10B981;
    position: absolute;
    left: 0;
    font-weight: bold;
}

.card-issues li:before {
    content: "✗";
    color: #EF4444;
    position: absolute;
    left: 0;
    font-weight: bold;
}

.comparison-vs {
    display: flex;
    justify-content: center;
    align-items: center;
}

.vs-circle {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, #0a7ea4, #174872);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.875rem;
    box-shadow: 0 4px 15px rgba(10, 126, 164, 0.3);
}

/* Performance Timeline */
.performance-timeline {
    margin: 4rem 0;
}

.timeline-title {
    text-align: center;
    font-size: 1.75rem;
    margin-bottom: 3rem;
    color: #2C3E50;
}

.timeline-container {
    position: relative;
    max-width: 1000px;
    margin: 0 auto;
    padding: 2rem 0;
}

.timeline-track {
    position: absolute;
    top: 50%;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, #0a7ea4, #174872);
    transform: translateY(-50%);
    border-radius: 2px;
}

.timeline-item {
    position: relative;
    display: flex;
    align-items: center;
    margin: 2rem 0;
    opacity: 0;
    transform: translateY(20px);
    animation: fadeInUp 0.8s ease forwards;
}

.timeline-item:nth-child(2) { animation-delay: 0.2s; }
.timeline-item:nth-child(3) { animation-delay: 0.4s; }
.timeline-item:nth-child(4) { animation-delay: 0.6s; }
.timeline-item:nth-child(5) { animation-delay: 0.8s; }

.time-marker {
    background: #0a7ea4;
    color: white;
    padding: 0.75rem 1rem;
    border-radius: 0.5rem;
    font-weight: 600;
    font-size: 0.875rem;
    white-space: nowrap;
    margin-right: 1.5rem;
    box-shadow: 0 4px 15px rgba(10, 126, 164, 0.3);
}

.performance-info {
    flex: 1;
    background: white;
    padding: 1.5rem;
    border-radius: 0.75rem;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
}

.performance-info:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.12);
}

.performance-info h4 {
    color: #2C3E50;
    margin-bottom: 0.5rem;
    font-size: 1.125rem;
}

.performance-info p {
    color: #6B7280;
    margin-bottom: 1rem;
    font-size: 0.9rem;
}

.performance-bar {
    height: 8px;
    background: #E5E7EB;
    border-radius: 4px;
    overflow: hidden;
    position: relative;
}

.performance-bar::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    height: 100%;
    background: linear-gradient(90deg, #0a7ea4, #174872);
    width: 0;
    transition: width 1.5s ease;
    border-radius: 4px;
}

.performance-bar[data-performance="95"]::before { width: 95%; }
.performance-bar[data-performance="85"]::before { width: 85%; }
.performance-bar[data-performance="80"]::before { width: 80%; }
.performance-bar[data-performance="75"]::before { width: 75%; }
.performance-bar[data-performance="60"]::before { width: 60%; }

/* Chronotype Quiz */
.chronotype-quiz {
    margin: 4rem 0;
    background: #F8FBFF;
    padding: 3rem;
    border-radius: 1rem;
}

.quiz-title {
    text-align: center;
    font-size: 1.75rem;
    margin-bottom: 2.5rem;
    color: #2C3E50;
}

.quiz-container {
    max-width: 600px;
    margin: 0 auto;
}

.quiz-question {
    display: none;
    opacity: 0;
    transform: translateX(20px);
    transition: all 0.5s ease;
}

.quiz-question.active {
    display: block;
    opacity: 1;
    transform: translateX(0);
}

.quiz-question h4 {
    font-size: 1.25rem;
    color: #2C3E50;
    margin-bottom: 1.5rem;
    text-align: center;
}

.quiz-options {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin-bottom: 1rem;
}

.quiz-option {
    display: flex;
    align-items: center;
    padding: 1.25rem;
    border: 2px solid #E5E7EB;
    border-radius: 0.75rem;
    cursor: pointer;
    transition: all 0.3s ease;
    background: white;
}

.quiz-option:hover {
    border-color: #0a7ea4;
    transform: translateX(5px);
    box-shadow: 0 4px 20px rgba(10, 126, 164, 0.1);
}

.quiz-option input[type="radio"] {
    margin-right: 1rem;
    transform: scale(1.2);
}

.option-text {
    font-weight: 600;
    color: #2C3E50;
    margin-bottom: 0.25rem;
    display: block;
}

.option-description {
    font-size: 0.875rem;
    color: #6B7280;
}

.quiz-navigation {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.quiz-btn {
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 0.5rem;
    cursor: pointer;
    font-weight: 600;
    transition: all 0.3s ease;
}

.prev-btn {
    background: #E5E7EB;
    color: #6B7280;
}

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

.next-btn, .results-btn {
    background: #0a7ea4;
    color: white;
}

.quiz-btn:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

/* Research Citations */
.research-citations {
    margin: 4rem 0;
}

.citations-title {
    text-align: center;
    font-size: 1.75rem;
    margin-bottom: 2.5rem;
    color: #2C3E50;
}

.citations-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    max-width: 1000px;
    margin: 0 auto;
}

.citation-card {
    background: white;
    padding: 2rem;
    border-radius: 1rem;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
    opacity: 0;
    transform: translateY(20px);
    animation: fadeInUp 0.8s ease forwards;
}

.citation-card:nth-child(2) { animation-delay: 0.2s; }
.citation-card:nth-child(3) { animation-delay: 0.4s; }

.citation-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.12);
}

.citation-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 1rem;
}

.citation-header h4 {
    color: #2C3E50;
    font-size: 1.125rem;
    line-height: 1.4;
    flex: 1;
    margin-right: 1rem;
}

.citation-year {
    background: linear-gradient(135deg, #0a7ea4, #174872);
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 1rem;
    font-size: 0.875rem;
    font-weight: 600;
    white-space: nowrap;
}

.citation-authors {
    color: #6B7280;
    font-style: italic;
    margin-bottom: 0.5rem;
}

.citation-journal {
    color: #0a7ea4;
    font-weight: 600;
    margin-bottom: 1rem;
}

.citation-impact {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 1rem;
}

.impact-number {
    background: linear-gradient(135deg, #10B981, #059669);
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 1rem;
    font-size: 1rem;
    font-weight: 700;
}

.impact-label {
    color: #6B7280;
    font-size: 0.875rem;
}

.citation-summary {
    color: #4B5563;
    line-height: 1.6;
    font-size: 0.9rem;
}

/* Performance Metrics */
.performance-metrics {
    margin: 4rem 0;
}

.metrics-title {
    text-align: center;
    font-size: 1.75rem;
    margin-bottom: 2.5rem;
    color: #2C3E50;
}

.metrics-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    max-width: 900px;
    margin: 0 auto;
}

.metric-card {
    background: white;
    padding: 2rem 1.5rem;
    border-radius: 1rem;
    text-align: center;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
    opacity: 0;
    transform: translateY(20px);
    animation: fadeInUp 0.8s ease forwards;
}

.metric-card:nth-child(2) { animation-delay: 0.2s; }
.metric-card:nth-child(3) { animation-delay: 0.4s; }
.metric-card:nth-child(4) { animation-delay: 0.6s; }

.metric-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.12);
}

.metric-icon {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.metric-number {
    font-size: 2.5rem;
    font-weight: 700;
    color: #0a7ea4;
    margin-bottom: 0.5rem;
    transition: all 0.5s ease;
}

.metric-label {
    font-size: 1rem;
    color: #2C3E50;
    margin-bottom: 0.75rem;
    font-weight: 600;
}

.metric-details {
    font-size: 0.875rem;
    color: #6B7280;
}

/* Reviews Section */
.reviews {
    padding: 5rem 0;
    background: #F8FBFF;
    overflow: hidden;
}

.reviews-content {
    display: block;
    margin-bottom: 3rem;
}

.reviews-text {
    order: 2;
}

.reviews-visual {
    order: 1;
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
    padding: 2rem;
}

.reviews-visual-top {
    order: 0;
    margin-bottom: 3rem;
    padding: 1rem;
}

.reviews-visual::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 170px;
    height: 170px;
    background: radial-gradient(circle, rgba(255, 215, 0, 0.08) 0%, rgba(255, 237, 78, 0.05) 100%);
    border-radius: 50%;
    z-index: -1;
}

.reviews-visual::after {
    content: '';
    position: absolute;
    bottom: 25%;
    right: 25%;
    width: 35px;
    height: 35px;
    background: radial-gradient(circle, rgba(255, 215, 0, 0.18) 0%, transparent 70%);
    border-radius: 50%;
    z-index: -1;
    animation: float 9s ease-in-out infinite reverse;
}

.reviews-image {
    max-width: 45%;
    height: auto;
    border-radius: 0.5rem;
    opacity: 0.9;
    mix-blend-mode: multiply;
    filter: brightness(1.1) contrast(1.1);
    position: relative;
    z-index: 2;
    transition: all 0.3s ease;
}

.reviews-image:hover {
    transform: scale(1.05);
    opacity: 1;
}

.reviews-scroll-container {
    position: relative;
    width: 100%;
    overflow: hidden;
    padding: 2rem 0;
}

.reviews-track {
    display: flex;
    gap: 2rem;
    animation: scroll-reviews 60s linear infinite;
    width: max-content;
    padding: 0 1rem;
}

.reviews-track:hover {
    animation-play-state: paused;
}

.review-card {
    background: white;
    padding: 2rem;
    border-radius: 1rem;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
    min-width: 320px;
    max-width: 320px;
    flex-shrink: 0;
}

.review-card:hover {
    transform: translateY(-5px) scale(1.05);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.12);
    z-index: 10;
}

.review-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.review-avatar {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: linear-gradient(135deg, #0a7ea4, #174872);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 700;
    font-size: 1.25rem;
}

.review-info h4 {
    color: #2C3E50;
    margin: 0 0 0.25rem 0;
    font-size: 1.125rem;
}

.review-info .review-location {
    color: #6B7280;
    font-size: 0.875rem;
}

.review-rating {
    display: flex;
    gap: 0.25rem;
    margin-bottom: 1rem;
}

.star {
    color: #FFD700;
    font-size: 1.1rem;
    text-shadow: 0 0 8px rgba(255, 215, 0, 0.4);
    transition: all 0.3s ease;
}

.star:hover {
    color: #FFED4E;
    text-shadow: 0 0 12px rgba(255, 215, 0, 0.6);
    transform: scale(1.1);
}

.review-text {
    color: #4B5563;
    margin-bottom: 1.5rem;
    line-height: 1.6;
    font-size: 0.95rem;
}

.review-date {
    color: #9CA3AF;
    font-size: 0.875rem;
}

@keyframes scroll-reviews {
    0% {
        transform: translateX(0);
    }
    100% {
        transform: translateX(-50%);
    }
}

/* Responsive adjustments for reviews */
@media (max-width: 768px) {
    .reviews-track {
        animation-duration: 40s;
    }
    
    .review-card {
        min-width: 280px;
        max-width: 280px;
    }
}

@media (max-width: 480px) {
    .reviews-track {
        animation-duration: 30s;
    }
    
    .review-card {
        min-width: 260px;
        max-width: 260px;
        padding: 1.5rem;
    }
}

/* CTA Section */
.cta-section {
    padding: 5rem 0;
    background: linear-gradient(135deg, #0a7ea4 0%, #174872 100%);
    color: white;
    text-align: center;
}

.cta-title {
    font-family: 'Poppins', sans-serif;
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.cta-description {
    font-size: 1.125rem;
    opacity: 0.9;
    margin-bottom: 2rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* Footer */
.footer {
    background: #2C3E50;
    color: white;
    padding: 3rem 0 1rem;
}

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

.footer-logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.footer-logo .logo-icon {
    color: white;
}

.footer-logo .logo-text {
    color: white;
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.footer-column h4 {
    font-weight: 600;
    margin-bottom: 1rem;
    color: #fadf47;
}

.footer-column ul {
    list-style: none;
}

.footer-column li {
    margin-bottom: 0.5rem;
}

.footer-column a {
    color: #BDC3C7;
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-column a:hover {
    color: #fadf47;
}

/* Social Media Links */
.social-links {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.social-link {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem;
    border-radius: 0.5rem;
    transition: all 0.3s ease;
    color: #BDC3C7;
    text-decoration: none;
}

.social-link:hover {
    transform: translateX(5px);
    color: white;
}

.social-link.instagram:hover {
    background: linear-gradient(45deg, #f09433 0%, #e6683c 25%, #dc2743 50%, #cc2366 75%, #bc1888 100%);
    box-shadow: 0 4px 15px rgba(220, 39, 67, 0.3);
}

.social-link.tiktok:hover {
    background: linear-gradient(45deg, #000000 0%, #25F4EE 50%, #FE2C55 100%);
    box-shadow: 0 4px 15px rgba(37, 244, 238, 0.3);
}

.social-link svg {
    width: 20px;
    height: 20px;
    transition: transform 0.3s ease;
}

.social-link:hover svg {
    transform: scale(1.1);
}

.social-link span {
    font-weight: 500;
    font-size: 0.9rem;
}

.footer-bottom {
    border-top: 1px solid #34495E;
    padding-top: 2rem;
    text-align: center;
    color: #BDC3C7;
}

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

@keyframes fadeInRight {
    from {
        opacity: 0;
        transform: translateX(30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes chartGrow {
    from {
        transform: scaleY(0);
    }
    to {
        transform: scaleY(1);
    }
}

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

/* Responsive Design */
@media (max-width: 768px) {
    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .comparison-table {
        grid-template-columns: 1fr;
    }
    
    .science-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .nav-list {
        display: none;
    }
}

@media (max-width: 480px) {
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .hero-stats {
        flex-direction: column;
        gap: 1rem;
    }
    
    .container {
        padding: 0 1rem;
    }
}

/* Responsive adjustments for images */
@media (max-width: 768px) {
    .comparison-visual-top,
    .steps-visual-top,
    .science-visual-top,
    .reviews-visual-top {
        margin-bottom: 2rem;
    }
    
    .comparison-image,
    .steps-image,
    .science-image,
    .reviews-image {
        max-width: 50%;
        opacity: 0.8;
    }
}

@media (max-width: 480px) {
    .comparison-image,
    .steps-image,
    .science-image,
    .reviews-image {
        max-width: 40%;
        opacity: 0.7;
    }
}

/* App Demo Styles */
.app-demo-container {
    position: relative;
    width: 100%;
    height: 100%;
    overflow: hidden;
    border-radius: 1.5rem;
    background: #f8f9fa;
    flex: 1;
}

.app-demo-image {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0;
    transition: opacity 0.8s ease-in-out;
    border-radius: 1.5rem;
}

.app-demo-image.active {
    opacity: 1;
}

/* Modal Styles */
.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(5px);
}

.modal-content {
    background-color: white;
    margin: 5% auto;
    padding: 0;
    border-radius: 1rem;
    width: 90%;
    max-width: 600px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    animation: modalSlideIn 0.3s ease-out;
}

@keyframes modalSlideIn {
    from {
        opacity: 0;
        transform: translateY(-50px) scale(0.9);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem 2rem;
    border-bottom: 1px solid #e5e7eb;
    background: linear-gradient(135deg, #0a7ea4, #174872);
    color: white;
    border-radius: 1rem 1rem 0 0;
}

.modal-header h3 {
    margin: 0;
    font-size: 1.5rem;
    font-weight: 700;
}

.close {
    color: white;
    font-size: 2rem;
    font-weight: bold;
    cursor: pointer;
    transition: opacity 0.3s ease;
}

.close:hover {
    opacity: 0.7;
}

.modal-body {
    padding: 2rem;
}

.schedule-tabs {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 2rem;
    border-bottom: 1px solid #e5e7eb;
}

.tab-btn {
    padding: 0.75rem 1.5rem;
    border: none;
    background: transparent;
    color: #6b7280;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    border-bottom: 2px solid transparent;
}

.tab-btn.active {
    color: #0a7ea4;
    border-bottom-color: #0a7ea4;
}

.tab-btn:hover {
    color: #0a7ea4;
    background: #f8fbff;
}

.schedule-tab {
    display: none;
}

.schedule-tab.active {
    display: block;
}

.schedule-tab h4 {
    color: #2c3e50;
    margin-bottom: 1.5rem;
    font-size: 1.25rem;
    font-weight: 700;
}

.modal-footer {
    padding: 1.5rem 2rem;
    border-top: 1px solid #e5e7eb;
    text-align: center;
    background: #f8fbff;
    border-radius: 0 0 1rem 1rem;
}

/* Responsive Modal */
@media (max-width: 768px) {
    .modal-content {
        width: 95%;
        margin: 10% auto;
    }
    
    .modal-header,
    .modal-body,
    .modal-footer {
        padding: 1rem 1.5rem;
    }
    
    .schedule-tabs {
        flex-direction: column;
        gap: 0;
    }
    
    .tab-btn {
        border-bottom: 1px solid #e5e7eb;
        border-radius: 0;
    }
    
    .tab-btn.active {
        background: #f8fbff;
    }
}