/* ================================
   Main Stylesheet
   Team 12 - Endpoint-Management
   ================================ */

/* === RESET & BASE === */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-primary);
    font-size: var(--font-size-base);
    line-height: var(--line-height-normal);
    color: var(--color-gray-900);
    background-color: var(--bg-primary);
    overflow-x: hidden;
    font-weight: var(--font-weight-normal);
}

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

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition-base);
}

ul, ol {
    list-style: none;
}

/* === CONTAINER === */
.container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

@media (min-width: 768px) {
    .container {
        padding: 0 2rem;
    }
}

@media (min-width: 1440px) {
    .container {
        padding: 0 3rem;
    }
}

@media (min-width: 1920px) {
    .container {
        max-width: 1600px;
    }
}

/* === BUTTONS === */
.btn {
    display: inline-block;
    padding: 0.875rem 2rem;
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-semibold);
    text-align: center;
    border: 2px solid transparent;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-base);
    white-space: nowrap;
}

@media (min-width: 1440px) {
    .btn {
        padding: 1rem 2.5rem;
        font-size: 1.05rem;
    }
}

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

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

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

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

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

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

/* === NAVIGATION === */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: var(--navbar-height);
    background-color: var(--navbar-bg);
    backdrop-filter: blur(10px);
    box-shadow: var(--navbar-shadow);
    z-index: var(--z-fixed);
    transition: var(--transition-base);
}

.navbar.scrolled {
    box-shadow: var(--shadow-lg);
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-bold);
    color: var(--primary-color);
}

.logo-img {
    height: 40px;
    width: auto;
}

.logo-text strong {
    color: var(--primary-dark);
}

@media (min-width: 1440px) {
    .logo {
        font-size: 1.5rem;
    }

    .logo-img {
        height: 50px;
    }
}

.nav-menu {
    display: none;
    gap: 2rem;
}

@media (min-width: 768px) {
    .nav-menu {
        display: flex;
    }
}

@media (min-width: 1440px) {
    .nav-menu {
        gap: 2.5rem;
    }
}

.nav-link {
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-semibold);
    color: var(--color-gray-800);
    position: relative;
    padding: 0.5rem 0;
}

@media (min-width: 1440px) {
    .nav-link {
        font-size: 1.05rem;
    }
}

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

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

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

/* === MOBILE MENU === */
.mobile-menu-toggle {
    display: flex;
    flex-direction: column;
    gap: 6px;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
    z-index: 1000;
}

.mobile-menu-toggle span {
    width: 25px;
    height: 3px;
    background: var(--primary-color);
    border-radius: 3px;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.mobile-menu-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(8px, 8px);
}

.mobile-menu-toggle.active span:nth-child(2) {
    opacity: 0;
}

.mobile-menu-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -7px);
}

@media (min-width: 768px) {
    .mobile-menu-toggle {
        display: none;
    }
}

/* Mobile Navigation Dropdown */
@media (max-width: 767px) {
    .nav-menu {
        display: flex;
        flex-direction: column;
        position: fixed;
        top: var(--navbar-height);
        left: 0;
        right: 0;
        background: rgba(255, 255, 255, 0.98);
        backdrop-filter: blur(10px);
        padding: 2rem;
        gap: 1.5rem;
        box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    }

    .nav-menu.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }

    .nav-link {
        padding: 1rem;
        text-align: center;
        border-bottom: 1px solid var(--color-gray-200);
    }
}

/* === SCROLL TO TOP BUTTON === */
#scroll-to-top {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 55px;
    height: 55px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: white;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 1000;
    box-shadow: 0 8px 20px rgba(0, 102, 204, 0.3);
    display: flex;
    align-items: center;
    justify-content: center;
}

#scroll-to-top:hover {
    transform: translateY(-5px) scale(1.1);
    box-shadow: 0 12px 28px rgba(0, 102, 204, 0.4);
}

#scroll-to-top.show {
    opacity: 1;
    visibility: visible;
}

/* === HERO SECTION === */
.hero {
    position: relative;
    min-height: var(--hero-min-height);
    display: flex;
    align-items: center;
    justify-content: center;
    background-image: url('../images/hero/hero-background.png');
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    padding-top: var(--navbar-height);
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(0, 102, 204, 0.8), rgba(0, 0, 0, 0.7));
    z-index: 1;
}

.hero-container {
    position: relative;
    z-index: 2;
    text-align: center;
}

.hero-content {
    color: var(--color-white);
    max-width: 900px;
    margin: 0 auto;
    padding: 4rem 0;
}

@media (min-width: 1440px) {
    .hero-content {
        max-width: 1000px;
        padding: 6rem 0;
    }
}

.hero-title {
    font-size: var(--font-size-4xl);
    font-weight: var(--font-weight-bold);
    margin-bottom: var(--spacing-lg);
    line-height: var(--line-height-tight);
}

@media (min-width: 768px) {
    .hero-title {
        font-size: var(--font-size-6xl);
    }
}

@media (min-width: 1440px) {
    .hero-title {
        font-size: 4.5rem;
        letter-spacing: -0.02em;
    }
}

.hero-subtitle {
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-2xl);
    opacity: 0.95;
}

@media (min-width: 768px) {
    .hero-subtitle {
        font-size: var(--font-size-xl);
    }
}

@media (min-width: 1440px) {
    .hero-subtitle {
        font-size: 1.5rem;
        max-width: 700px;
        margin-left: auto;
        margin-right: auto;
    }
}

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

.scroll-indicator {
    margin-top: var(--spacing-3xl);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    color: var(--color-white);
    font-size: var(--font-size-sm);
    animation: bounce 2s infinite;
}

.scroll-arrow {
    width: 24px;
    height: 24px;
    border-left: 2px solid var(--color-white);
    border-bottom: 2px solid var(--color-white);
    transform: rotate(-45deg);
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateY(0);
    }
    40% {
        transform: translateY(-10px);
    }
    60% {
        transform: translateY(-5px);
    }
}

/* === SECTIONS === */
.section {
    padding: var(--spacing-4xl) 0;
    padding-top: calc(var(--navbar-height) + var(--spacing-4xl));
}

@media (min-width: 1440px) {
    .section {
        padding: var(--spacing-5xl) 0;
        padding-top: calc(var(--navbar-height) + var(--spacing-5xl));
    }
}

.section:nth-child(even) {
    background-color: var(--bg-secondary);
}

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

@media (min-width: 1440px) {
    .section-header {
        max-width: 850px;
        margin-bottom: var(--spacing-4xl);
    }
}

.section-title {
    font-size: var(--font-size-3xl);
    font-weight: var(--font-weight-bold);
    color: var(--primary-color);
    margin-bottom: var(--spacing-md);
}

@media (min-width: 768px) {
    .section-title {
        font-size: var(--font-size-4xl);
    }
}

@media (min-width: 1440px) {
    .section-title {
        font-size: 3rem;
        letter-spacing: -0.02em;
        margin-bottom: var(--spacing-lg);
    }
}

.section-description {
    font-size: var(--font-size-lg);
    color: var(--color-gray-700);
    line-height: var(--line-height-relaxed);
    font-weight: var(--font-weight-medium);
}

@media (min-width: 1440px) {
    .section-description {
        font-size: 1.25rem;
        max-width: 800px;
        margin-left: auto;
        margin-right: auto;
    }
}

.subsection-title {
    font-size: var(--font-size-2xl);
    font-weight: var(--font-weight-semibold);
    color: var(--text-primary);
    text-align: center;
    margin: var(--spacing-3xl) 0 var(--spacing-2xl);
}

/* === PROJEKT SECTION === */
.projekt-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-3xl);
}

@media (min-width: 768px) {
    .projekt-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

.projekt-card {
    background: var(--color-white);
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    text-align: center;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

@media (min-width: 1440px) {
    .projekt-card {
        padding: var(--spacing-2xl);
    }
}

.projekt-card:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: 0 20px 40px rgba(0, 102, 204, 0.3);
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
}

.projekt-card:hover h3 {
    color: var(--color-white);
}

.projekt-card:hover p {
    color: var(--color-white);
}

.projekt-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-md);
}

.projekt-card h3 {
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-semibold);
    margin-bottom: var(--spacing-md);
    color: var(--primary-color);
}

@media (min-width: 1440px) {
    .projekt-card h3 {
        font-size: 1.5rem;
    }

    .projekt-card p {
        font-size: 1.05rem;
        line-height: 1.8;
    }
}

.projekt-card p {
    color: var(--color-gray-700);
    line-height: var(--line-height-relaxed);
}

/* === PHASEN TIMELINE === */
.phasen-timeline {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
    max-width: 1000px;
    margin: 0 auto;
}

@media (min-width: 768px) {
    .phasen-timeline {
        grid-template-columns: repeat(2, 1fr);
    }
}

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

@media (min-width: 1440px) {
    .phasen-timeline {
        gap: var(--spacing-xl);
        max-width: 1200px;
    }
}

.phase {
    background: var(--color-white);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    text-align: center;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.phase:hover {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    transform: translateY(-8px) scale(1.02);
    box-shadow: 0 20px 40px rgba(0, 102, 204, 0.3);
}

.phase:hover h4 {
    color: var(--color-white);
}

.phase:hover p {
    color: var(--color-white);
}

.phase-number {
    width: 50px;
    height: 50px;
    background: var(--primary-color);
    color: var(--color-white);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-2xl);
    font-weight: var(--font-weight-bold);
    margin: 0 auto var(--spacing-md);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.phase:hover .phase-number {
    background: var(--color-white);
    color: var(--primary-color);
    transform: rotate(360deg) scale(1.1);
}

.phase h4 {
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-semibold);
    margin-bottom: var(--spacing-sm);
    color: var(--text-primary);
}

.phase p {
    font-size: var(--font-size-sm);
    color: var(--color-gray-700);
    font-weight: var(--font-weight-medium);
}

/* === FEATURES GRID === */
.features-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-xl);
}

@media (min-width: 768px) {
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

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

@media (min-width: 1440px) {
    .features-grid {
        gap: var(--spacing-2xl);
    }
}

.feature-card {
    background: var(--color-white);
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

@media (min-width: 1440px) {
    .feature-card {
        padding: var(--spacing-2xl);
    }
}

.feature-card:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: 0 20px 40px rgba(0, 102, 204, 0.3);
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
}

.feature-card:hover h3 {
    color: var(--color-white);
}

.feature-card:hover > p {
    color: var(--color-white);
}

.feature-card:hover .feature-list li {
    color: var(--color-white);
}

.feature-icon {
    width: 64px;
    height: 64px;
    margin-bottom: var(--spacing-md);
}

.feature-icon img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.feature-card h3 {
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-semibold);
    margin-bottom: var(--spacing-md);
    color: var(--primary-color);
}

@media (min-width: 1440px) {
    .feature-card h3 {
        font-size: 1.5rem;
    }

    .feature-card > p {
        font-size: 1.05rem;
    }

    .feature-icon {
        width: 72px;
        height: 72px;
    }
}

.feature-card > p {
    color: var(--color-gray-700);
    line-height: var(--line-height-relaxed);
    margin-bottom: var(--spacing-md);
}

.feature-list {
    margin-top: var(--spacing-md);
}

.feature-list li {
    padding: 0.5rem 0;
    padding-left: 1.5rem;
    position: relative;
    color: var(--color-gray-700);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
}

.feature-list li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--secondary-color);
    font-weight: var(--font-weight-bold);
}

/* === TECH SECTION === */
.tech-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-3xl);
}

@media (min-width: 768px) {
    .tech-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

.tech-category {
    background: var(--color-white);
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.tech-category:hover {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    transform: translateY(-8px) scale(1.02);
    box-shadow: 0 20px 40px rgba(0, 102, 204, 0.3);
}

.tech-category:hover h3 {
    color: var(--color-white);
}

.tech-category:hover .tech-list li {
    color: var(--color-white);
    border-bottom-color: rgba(255, 255, 255, 0.2);
}

.tech-category:hover .tech-list li::before {
    color: var(--color-white);
}

.tech-category h3 {
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-semibold);
    color: var(--primary-color);
    margin-bottom: var(--spacing-lg);
}

.tech-list li {
    padding: 0.75rem 0;
    padding-left: 1.5rem;
    position: relative;
    color: var(--color-gray-800);
    font-weight: var(--font-weight-medium);
    border-bottom: 1px solid var(--color-gray-200);
}

.tech-list li:last-child {
    border-bottom: none;
}

.tech-list li::before {
    content: '▸';
    position: absolute;
    left: 0;
    color: var(--primary-color);
    font-weight: var(--font-weight-bold);
}

.tech-logos {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-3xl);
    align-items: center;
}

@media (min-width: 768px) {
    .tech-logos {
        grid-template-columns: repeat(4, 1fr);
    }
}

.logo-item {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-lg);
    background: var(--color-white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    transition: var(--transition-base);
}

.logo-item:hover {
    transform: scale(1.05);
    box-shadow: var(--shadow-md);
}

.logo-item img {
    max-height: 60px;
    width: auto;
    object-fit: contain;
}

.architecture-diagram {
    background: var(--color-white);
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
}

.architecture-diagram h3 {
    font-size: var(--font-size-2xl);
    font-weight: var(--font-weight-semibold);
    color: var(--primary-color);
    text-align: center;
    margin-bottom: var(--spacing-lg);
}

.diagram-img {
    width: 100%;
    height: auto;
    border-radius: var(--radius-md);
}

/* === SCREENSHOTS SECTION === */
.screenshots-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-3xl);
}

@media (min-width: 768px) {
    .screenshots-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

.screenshot-card {
    position: relative;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    cursor: pointer;
    transition: var(--transition-base);
}

.screenshot-card:hover {
    transform: scale(1.02);
    box-shadow: var(--shadow-2xl);
}

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

.screenshot-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.9), transparent);
    color: var(--color-white);
    padding: var(--spacing-lg);
    transform: translateY(0);
    transition: var(--transition-base);
}

.screenshot-card:hover .screenshot-overlay {
    transform: translateY(0);
}

.screenshot-overlay h4 {
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-semibold);
    margin-bottom: var(--spacing-xs);
}

.screenshot-overlay p {
    font-size: var(--font-size-sm);
    opacity: 0.9;
}

/* === SUCCESS CRITERIA === */
.success-criteria {
    background: var(--color-white);
    padding: var(--spacing-2xl);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
}

.success-criteria h3 {
    font-size: var(--font-size-2xl);
    font-weight: var(--font-weight-semibold);
    color: var(--primary-color);
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.criteria-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
}

@media (min-width: 768px) {
    .criteria-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

.criteria-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    background: var(--bg-secondary);
    border-radius: var(--radius-md);
}

.criteria-icon {
    flex-shrink: 0;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-success);
    color: var(--color-white);
    border-radius: var(--radius-full);
    font-weight: var(--font-weight-bold);
    font-size: var(--font-size-lg);
}

.criteria-item p {
    color: var(--text-primary);
    font-weight: var(--font-weight-medium);
}

/* === DOKUMENTATION SECTION === */
.docs-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-xl);
}

@media (min-width: 768px) {
    .docs-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

.doc-card {
    background: var(--color-white);
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    text-align: center;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

@media (min-width: 1440px) {
    .doc-card {
        padding: var(--spacing-2xl);
    }

    .doc-card h3 {
        font-size: 1.5rem;
    }
}

.doc-card:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: 0 20px 40px rgba(0, 102, 204, 0.3);
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
}

.doc-card:hover h3 {
    color: var(--color-white);
}

.doc-card:hover p {
    color: var(--color-white);
}

.doc-icon {
    font-size: 4rem;
    margin-bottom: var(--spacing-md);
}

.doc-card h3 {
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-semibold);
    color: var(--primary-color);
    margin-bottom: var(--spacing-md);
}

.doc-card p {
    color: var(--color-gray-700);
    line-height: var(--line-height-relaxed);
    margin-bottom: var(--spacing-lg);
    font-weight: var(--font-weight-medium);
}

/* === FOOTER === */
.footer {
    background-color: var(--bg-dark);
    color: var(--text-white);
    padding: var(--spacing-3xl) 0 var(--spacing-xl);
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-2xl);
}

@media (min-width: 768px) {
    .footer-content {
        grid-template-columns: repeat(3, 1fr);
    }
}

.footer-section h4 {
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-semibold);
    margin-bottom: var(--spacing-md);
    color: var(--primary-light);
}

.footer-section p {
    color: var(--color-gray-400);
    line-height: var(--line-height-relaxed);
}

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

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

.footer-links a:hover {
    color: var(--primary-light);
    padding-left: 0.5rem;
}

.footer-bottom {
    text-align: center;
    padding-top: var(--spacing-xl);
    border-top: 1px solid var(--color-gray-700);
}

.footer-bottom p {
    color: var(--color-gray-500);
    font-size: var(--font-size-sm);
    margin-bottom: var(--spacing-xs);
}

.footer-note {
    font-size: var(--font-size-xs);
    color: var(--color-gray-600);
}

/* === LIGHTBOX === */
.lightbox {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.95);
    z-index: var(--z-modal);
    align-items: center;
    justify-content: center;
    padding: var(--spacing-xl);
}

.lightbox.active {
    display: flex;
}

.lightbox-close {
    position: absolute;
    top: 2rem;
    right: 2rem;
    font-size: 3rem;
    color: var(--color-white);
    cursor: pointer;
    transition: var(--transition-base);
}

.lightbox-close:hover {
    color: var(--primary-light);
    transform: rotate(90deg);
}

.lightbox-img {
    max-width: 90%;
    max-height: 80vh;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-2xl);
}

.lightbox-caption {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    color: var(--color-white);
    font-size: var(--font-size-lg);
    text-align: center;
    background: rgba(0, 0, 0, 0.7);
    padding: var(--spacing-md) var(--spacing-xl);
    border-radius: var(--radius-md);
}

/* === UTILITIES === */
.text-center {
    text-align: center;
}

.mt-1 { margin-top: var(--spacing-sm); }
.mt-2 { margin-top: var(--spacing-md); }
.mt-3 { margin-top: var(--spacing-lg); }
.mt-4 { margin-top: var(--spacing-xl); }

.mb-1 { margin-bottom: var(--spacing-sm); }
.mb-2 { margin-bottom: var(--spacing-md); }
.mb-3 { margin-bottom: var(--spacing-lg); }
.mb-4 { margin-bottom: var(--spacing-xl); }