/**
 * OneExam Landing Page CSS
 * Style inspiré de Central Test
 * Palette: Navy (#14213D), Orange (#FCA311), White (#FFFFFF), Gray (#E5E5E5)
 */

/* ========== VARIABLES ========== */
:root {
    --primary: #14213D;
    --primary-dark: #0F1A2E;
    --primary-light: #1E3A5F;
    --accent: #FCA311;
    --accent-dark: #E8940F;
    --white: #FFFFFF;
    --gray-100: #F8F9FA;
    --gray-200: #E5E5E5;
    --gray-300: #DEE2E6;
    --gray-600: #6C757D;
    --gray-800: #343A40;
    --black: #000000;
    --success: #28A745;
    --shadow: 0 4px 20px rgba(20, 33, 61, 0.1);
    --shadow-lg: 0 10px 40px rgba(20, 33, 61, 0.15);
}

/* ========== BASE ========== */
.landing-page {
    font-family: 'Public Sans', sans-serif;
    color: var(--gray-800);
    overflow-x: hidden;
}

.landing-page * {
    background-image: none !important;
}

/* ========== HEADER ========== */
.landing-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background-color: transparent;
    transition: all 0.3s ease;
    padding: 1rem 0;
}

.landing-header.scrolled {
    background-color: var(--white);
    box-shadow: var(--shadow);
    padding: 0.5rem 0;
}

.landing-header .navbar {
    padding: 0;
}

/* Logo styles */
.navbar-logo {
    height: 40px;
    width: auto;
    transition: opacity 0.3s ease;
}

.footer-logo {
    height: 36px;
    width: auto;
    filter: brightness(0) invert(1);
}

.landing-header .nav-link {
    color: rgba(255, 255, 255, 0.9);
    font-weight: 500;
    padding: 0.5rem 1rem;
    transition: color 0.3s ease;
    display: flex;
    align-items: center;
}

.landing-header.scrolled .nav-link {
    color: var(--primary);
}

.landing-header .nav-link:hover {
    color: var(--accent);
}

.landing-header .nav-link i {
    font-size: 1.1rem;
}

/* Liens d'authentification dans le menu */
.landing-header .nav-link[href*="login"],
.landing-header .nav-link[href*="register"] {
    font-weight: 600;
    margin-left: 0.5rem;
}

.landing-header .nav-link[href*="register"] {
    color: var(--accent) !important;
}

.landing-header.scrolled .nav-link[href*="register"] {
    color: var(--accent) !important;
}

.landing-header .nav-link[href*="register"]:hover {
    color: var(--accent-dark) !important;
}

.landing-header .dropdown-menu {
    border: none;
    box-shadow: var(--shadow-lg);
    border-radius: 8px;
    padding: 0.5rem 0;
}

.landing-header .dropdown-item {
    padding: 0.75rem 1.5rem;
    color: var(--primary);
}

.landing-header .dropdown-item:hover {
    background-color: var(--gray-100);
    color: var(--accent);
}

.landing-header .navbar-toggler {
    border: 2px solid rgba(255, 255, 255, 0.5);
    padding: 0.5rem 0.75rem;
    border-radius: 0.5rem;
}

.landing-header .navbar-toggler:focus {
    box-shadow: none;
    outline: none;
}

.landing-header .navbar-toggler-icon {
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba%28255, 255, 255, 1%29' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
    width: 1.5em;
    height: 1.5em;
}

.landing-header.scrolled .navbar-toggler {
    border-color: var(--primary);
}

.landing-header.scrolled .navbar-toggler-icon {
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba%2820, 33, 61, 1%29' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
}

/* Mobile Menu Styles */
@media (max-width: 991.98px) {
    .landing-header .navbar-collapse {
        background: var(--white);
        margin-top: 1rem;
        padding: 1.5rem;
        border-radius: 1rem;
        box-shadow: 0 10px 40px rgba(0, 0, 0, 0.15);
    }

    .landing-header .navbar-nav {
        gap: 0;
    }

    .landing-header .navbar-nav .nav-link {
        color: var(--primary) !important;
        padding: 0.75rem 1rem;
        border-radius: 0.5rem;
        margin-bottom: 0.25rem;
    }

    .landing-header .navbar-nav .nav-link:hover {
        background: var(--gray-100);
    }

    .landing-header .dropdown-menu {
        position: static !important;
        transform: none !important;
        box-shadow: none;
        border: none;
        padding-left: 1rem;
        background: var(--gray-100);
        border-radius: 0.5rem;
        margin-bottom: 0.5rem;
    }

    .landing-header .dropdown-menu .dropdown-item {
        padding: 0.5rem 1rem;
        color: var(--gray-600);
    }

    .landing-header .navbar-auth {
        margin-top: 1rem;
        padding-top: 1rem;
        border-top: 1px solid var(--gray-200);
        flex-direction: column;
        gap: 0.5rem !important;
    }

    .landing-header .navbar-auth .btn {
        width: 100%;
        justify-content: center;
    }

    .landing-header .navbar-auth .btn-outline-primary {
        border-color: var(--primary) !important;
        color: var(--primary) !important;
    }
}

.navbar-auth .btn-outline-primary {
    border-color: var(--white);
    color: var(--white);
}

.landing-header.scrolled .navbar-auth .btn-outline-primary {
    border-color: var(--primary);
    color: var(--primary);
}

/* ========== HERO SECTION ========== */
.hero-section {
    background-color: var(--primary);
    padding: 140px 0 80px;
    min-height: 100vh;
    display: flex;
    align-items: center;
}

.min-vh-75 {
    min-height: 75vh;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    color: var(--white);
    line-height: 1.2;
    margin-bottom: 1.5rem;
}

.hero-title .text-warning {
    color: var(--accent) !important;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: rgba(255, 255, 255, 0.85);
    line-height: 1.8;
    margin-bottom: 2rem;
}

.hero-cta .btn-lg {
    padding: 1rem 2rem;
    font-size: 1.1rem;
    font-weight: 600;
    border-radius: 8px;
}

.btn-warning {
    background-color: var(--accent) !important;
    border-color: var(--accent) !important;
    color: var(--black) !important;
}

.btn-warning:hover {
    background-color: var(--accent-dark) !important;
    border-color: var(--accent-dark) !important;
}

.btn-outline-light {
    border-color: rgba(255, 255, 255, 0.5);
    color: var(--white);
}

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

.trust-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background-color: rgba(255, 255, 255, 0.1);
    padding: 0.75rem 1.25rem;
    border-radius: 50px;
    color: var(--white);
    font-size: 0.95rem;
}

.trust-badge i {
    font-size: 1.25rem;
}

/* Hero Mockup */
.hero-mockup {
    position: relative;
}

.mockup-screen {
    background-color: var(--white);
    border-radius: 16px;
    box-shadow: var(--shadow-lg);
    overflow: hidden;
    max-width: 400px;
    margin-left: auto;
}

.mockup-header {
    background-color: var(--gray-200);
    padding: 12px 16px;
    display: flex;
    gap: 8px;
}

.mockup-header .dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
}

.mockup-header .dot.red { background-color: #FF5F57; }
.mockup-header .dot.yellow { background-color: #FFBD2E; }
.mockup-header .dot.green { background-color: #28CA41; }

.mockup-content {
    padding: 24px;
}

.mockup-stat {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 16px;
    background-color: var(--gray-100);
    border-radius: 12px;
    margin-bottom: 12px;
}

.mockup-stat:last-child {
    margin-bottom: 0;
}

.mockup-stat .stat-icon {
    width: 48px;
    height: 48px;
    background-color: var(--primary);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 1.5rem;
}

.mockup-stat .stat-number {
    display: block;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary);
}

.mockup-stat .stat-label {
    display: block;
    font-size: 0.875rem;
    color: var(--gray-600);
}

/* ========== TRUST SECTION ========== */
.trust-section {
    background-color: var(--white);
    padding: 40px 0;
    border-bottom: 1px solid var(--gray-200);
}

.trust-text {
    color: var(--gray-600);
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.trust-logo {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--gray-600);
    font-weight: 500;
    font-size: 0.95rem;
}

.trust-logo i {
    font-size: 1.5rem;
    color: var(--primary);
}

/* ========== FEATURES SECTION ========== */
.features-section {
    background-color: var(--gray-100);
    padding: 100px 0;
}

.section-badge {
    display: inline-block;
    background-color: rgba(252, 163, 17, 0.15);
    color: var(--accent-dark);
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    padding: 0.5rem 1rem;
    border-radius: 50px;
    margin-bottom: 1rem;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary);
    line-height: 1.3;
}

.section-title .text-warning {
    color: var(--accent) !important;
}

.feature-card {
    background-color: var(--white);
    border-radius: 16px;
    padding: 32px;
    height: 100%;
    transition: all 0.3s ease;
    border: 1px solid var(--gray-200);
}

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

.feature-icon {
    width: 64px;
    height: 64px;
    background-color: var(--primary);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 2rem;
    margin-bottom: 1.5rem;
}

.feature-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--primary);
    margin-bottom: 1rem;
}

.feature-desc {
    color: var(--gray-600);
    line-height: 1.7;
    margin-bottom: 1rem;
}

.feature-link {
    color: var(--accent);
    font-weight: 600;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 4px;
    transition: gap 0.3s ease;
}

.feature-link:hover {
    gap: 8px;
    color: var(--accent-dark);
}

/* ========== USE CASES SECTION ========== */
.usecases-section {
    background-color: var(--white);
    padding: 100px 0;
}

.usecase-card-stack {
    position: relative;
    padding: 40px;
}

.usecase-card {
    background-color: var(--white);
    border-radius: 12px;
    padding: 16px 24px;
    box-shadow: var(--shadow);
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 16px;
    font-weight: 500;
    border-left: 4px solid var(--accent);
}

.usecase-card i {
    font-size: 1.5rem;
}

.usecase-content .section-title {
    font-size: 2rem;
    margin-bottom: 1.5rem;
}

.usecase-desc {
    color: var(--gray-600);
    line-height: 1.8;
    margin-bottom: 1.5rem;
}

.usecase-features {
    list-style: none;
    padding: 0;
    margin-bottom: 2rem;
}

.usecase-features li {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 8px 0;
    color: var(--gray-800);
}

.usecase-features li i {
    color: var(--success);
    font-size: 1.25rem;
}

/* ========== CORRECTION SECTION ========== */
.correction-section {
    background-color: var(--gray-100);
    padding: 100px 0;
}

.correction-mockup {
    background-color: var(--white);
    border-radius: 16px;
    padding: 24px;
    box-shadow: var(--shadow);
}

.corr-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px;
    background-color: var(--gray-100);
    border-radius: 8px;
    margin-bottom: 12px;
    gap: 16px;
}

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

.corr-question {
    flex: 1;
    font-weight: 500;
    color: var(--primary);
}

.corr-auto, .corr-manual {
    font-size: 0.875rem;
    display: flex;
    align-items: center;
    gap: 4px;
}

.corr-auto {
    color: var(--primary);
}

.corr-manual {
    color: var(--accent);
}

.corr-score {
    font-weight: 600;
    min-width: 80px;
    text-align: right;
}

.correction-content .section-title {
    font-size: 2rem;
    margin-bottom: 1.5rem;
}

.correction-desc {
    color: var(--gray-600);
    line-height: 1.8;
    margin-bottom: 1.5rem;
}

.correction-features {
    list-style: none;
    padding: 0;
    margin-bottom: 2rem;
}

.correction-features li {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 8px 0;
    color: var(--gray-800);
}

.correction-features li i {
    color: var(--success);
    font-size: 1.25rem;
}

/* ========== SECURITY SECTION ========== */
.security-section {
    background-color: var(--primary);
    padding: 100px 0;
}

.security-section .section-badge {
    background-color: rgba(252, 163, 17, 0.2);
}

.security-section .section-title {
    color: var(--white);
}

.security-card {
    background-color: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 16px;
    padding: 32px;
    text-align: center;
    transition: all 0.3s ease;
}

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

.security-icon {
    width: 64px;
    height: 64px;
    background-color: var(--accent);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary);
    font-size: 1.75rem;
    margin: 0 auto 1.5rem;
}

.security-card h3 {
    color: var(--white);
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.security-card p {
    color: rgba(255, 255, 255, 0.75);
    line-height: 1.7;
    margin: 0;
}

/* ========== TESTIMONIALS SECTION ========== */
.testimonials-section {
    background-color: var(--white);
    padding: 100px 0;
}

.testimonial-card {
    background-color: var(--gray-100);
    border-radius: 16px;
    padding: 32px;
    height: 100%;
    border-left: 4px solid var(--accent);
}

.testimonial-content p {
    font-size: 1.1rem;
    line-height: 1.8;
    color: var(--gray-800);
    margin-bottom: 1.5rem;
    font-style: italic;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 16px;
}

.author-avatar {
    width: 56px;
    height: 56px;
    background-color: var(--primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 1.5rem;
}

.author-info strong {
    display: block;
    color: var(--primary);
    font-weight: 600;
}

.author-info span {
    color: var(--gray-600);
    font-size: 0.875rem;
}

/* ========== PRICING SECTION ========== */
.pricing-section {
    background-color: var(--gray-100);
    padding: 100px 0;
}

.pricing-card {
    background-color: var(--white);
    border-radius: 16px;
    padding: 40px 32px;
    height: 100%;
    text-align: center;
    border: 2px solid var(--gray-200);
    transition: all 0.3s ease;
    position: relative;
}

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

.pricing-card.featured {
    border-color: var(--accent);
    transform: scale(1.05);
}

.pricing-card.featured:hover {
    transform: scale(1.05) translateY(-8px);
}

.pricing-badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background-color: var(--accent);
    color: var(--primary);
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    padding: 6px 16px;
    border-radius: 50px;
}

.plan-name {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--primary);
    margin-bottom: 1rem;
}

.plan-price {
    margin-bottom: 2rem;
}

.plan-price .currency {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--primary);
    vertical-align: top;
}

.plan-price .amount {
    font-size: 3.5rem;
    font-weight: 700;
    color: var(--primary);
    line-height: 1;
}

.plan-price .period {
    color: var(--gray-600);
    font-size: 1rem;
}

.pricing-features ul {
    list-style: none;
    padding: 0;
    margin: 0 0 2rem;
    text-align: left;
}

.pricing-features li {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 0;
    border-bottom: 1px solid var(--gray-200);
    color: var(--gray-800);
}

.pricing-features li:last-child {
    border-bottom: none;
}

.pricing-features li i {
    color: var(--success);
    font-size: 1.25rem;
}

/* ========== CTA SECTION ========== */
.cta-section {
    background-color: var(--white);
    padding: 60px 0;
}

.cta-box {
    background-color: var(--primary);
    border-radius: 24px;
    padding: 60px;
}

.cta-title {
    font-size: 2rem;
    font-weight: 700;
    color: var(--white);
    margin-bottom: 0.5rem;
}

.cta-desc {
    color: rgba(255, 255, 255, 0.85);
    margin: 0;
}

/* ========== FOOTER ========== */
.landing-footer {
    background-color: var(--primary);
    padding: 80px 0 0;
}

.footer-brand .brand-text {
    font-size: 1.5rem;
}

.footer-desc {
    color: rgba(255, 255, 255, 0.75);
    line-height: 1.8;
    margin-bottom: 1.5rem;
}

.footer-social {
    display: flex;
    gap: 12px;
}

.footer-social a {
    width: 40px;
    height: 40px;
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 1.25rem;
    transition: all 0.3s ease;
}

.footer-social a:hover {
    background-color: var(--accent);
    color: var(--primary);
}

.footer-title {
    color: var(--white);
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
}

.footer-links {
    list-style: none;
    padding: 0;
    margin: 0;
}

.footer-links li {
    margin-bottom: 0.75rem;
}

.footer-links a {
    color: rgba(255, 255, 255, 0.75);
    text-decoration: none;
    transition: color 0.3s ease;
}

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

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding: 24px 0;
    margin-top: 60px;
}

.copyright {
    color: rgba(255, 255, 255, 0.6);
    margin: 0;
}

.footer-contact {
    color: rgba(255, 255, 255, 0.6);
    margin: 0;
}

/* ========== RESPONSIVE ========== */
@media (max-width: 991px) {
    .hero-title {
        font-size: 2.5rem;
    }

    .hero-section {
        padding: 120px 0 60px;
    }

    .mockup-screen {
        margin: 40px auto 0;
    }

    .navbar-collapse {
        background-color: var(--white);
        padding: 1rem;
        border-radius: 8px;
        margin-top: 1rem;
        box-shadow: var(--shadow);
    }

    .navbar-collapse .nav-link {
        color: var(--primary) !important;
    }

    .navbar-auth {
        margin-top: 1rem;
        flex-direction: column;
    }

    .navbar-auth .btn {
        width: 100%;
    }
}

@media (max-width: 767px) {
    .hero-title {
        font-size: 2rem;
    }

    .section-title {
        font-size: 1.75rem;
    }

    .hero-cta {
        flex-direction: column;
    }

    .hero-cta .btn {
        width: 100%;
    }

    .cta-box {
        padding: 40px 24px;
        text-align: center;
    }

    .cta-box .text-lg-end {
        text-align: center !important;
        margin-top: 1.5rem;
    }

    .corr-item {
        flex-wrap: wrap;
    }

    .pricing-card.featured {
        transform: none;
    }

    .pricing-card.featured:hover {
        transform: translateY(-8px);
    }
}