/* ========================================
   HOMEPAGE STYLES
   Modern Hero & Featured Projects
   ======================================== */

/* ========================================
   HERO SECTION - MODERN REDESIGN
   ======================================== */

.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    background: var(--color-primary);
    color: white;
    overflow: hidden;
    padding: var(--spacing-xl) 0;
}

/* Subtle texture overlay */
.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image:
        repeating-linear-gradient(
            45deg,
            transparent,
            transparent 2px,
            rgba(255, 255, 255, 0.02) 2px,
            rgba(255, 255, 255, 0.02) 4px
        );
    pointer-events: none;
    z-index: 1;
}

/* Animated geometric pattern */
.hero::after {
    content: '';
    position: absolute;
    top: -50%;
    right: -10%;
    width: 80%;
    height: 150%;
    background: radial-gradient(
        circle,
        rgba(52, 152, 219, 0.15) 0%,
        rgba(52, 152, 219, 0.05) 30%,
        transparent 70%
    );
    border-radius: 50%;
    animation: float 20s ease-in-out infinite;
    pointer-events: none;
    z-index: 1;
}

@keyframes float {
    0%, 100% {
        transform: translate(0, 0) scale(1);
    }
    33% {
        transform: translate(-30px, -50px) scale(1.05);
    }
    66% {
        transform: translate(30px, 30px) scale(0.95);
    }
}

.hero .container {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: var(--spacing-2xl);
    align-items: center;
    position: relative;
    z-index: 2;
}

/* Hero Content */
.hero-content {
    max-width: 650px;
}

.hero h1 {
    font-size: clamp(2.5rem, 6vw, 4.5rem);
    font-weight: var(--font-weight-bold);
    margin-bottom: var(--spacing-md);
    line-height: 1.1;
    color: white;
    position: relative;
    display: inline-block;
}

/* Animated accent underline */
.hero h1::after {
    content: '';
    position: absolute;
    bottom: -12px;
    left: 0;
    width: 100%;
    max-width: 200px;
    height: 5px;
    background: linear-gradient(
        to right,
        var(--color-secondary),
        var(--color-accent)
    );
    border-radius: 3px;
    animation: underlineGrow 1s ease-out forwards;
}

@keyframes underlineGrow {
    from {
        width: 0;
        opacity: 0;
    }
    to {
        width: 100%;
        max-width: 200px;
        opacity: 1;
    }
}

.hero-subtitle {
    font-size: clamp(1.125rem, 2vw, 1.5rem);
    font-weight: var(--font-weight-medium);
    color: var(--color-secondary-light);
    margin-bottom: var(--spacing-sm);
    margin-top: var(--spacing-lg);
}

.hero p {
    font-size: clamp(1rem, 1.5vw, 1.25rem);
    line-height: var(--line-height-relaxed);
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: var(--spacing-lg);
}

/* CTA Buttons */
.cta-buttons {
    display: flex;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
    margin-top: var(--spacing-xl);
}

.cta-buttons .btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: 1rem 2rem;
    font-size: 1.125rem;
    font-weight: var(--font-weight-semibold);
    border-radius: var(--radius-md);
    text-decoration: none;
    transition: all var(--transition-base) var(--ease-out);
    position: relative;
    overflow: hidden;
}

.cta-buttons .btn-primary {
    background-color: var(--color-accent);
    color: white;
    box-shadow: var(--shadow-accent);
}

.cta-buttons .btn-primary:hover {
    background-color: var(--color-accent-dark);
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(231, 76, 60, 0.4);
}

.cta-buttons .btn-secondary {
    background-color: var(--color-success);
    color: white;
    box-shadow: 0 4px 14px rgba(39, 174, 96, 0.3);
}

.cta-buttons .btn-secondary:hover {
    background-color: #1e8449;
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(39, 174, 96, 0.4);
}

/* Hero Image */
.hero-image {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero-image img {
    width: 100%;
    max-width: 500px;
    height: auto;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    transition: transform var(--transition-slow) var(--ease-out);
}

.hero-image img:hover {
    transform: scale(1.02);
}

/* Decorative element behind image */
.hero-image::before {
    content: '';
    position: absolute;
    top: -20px;
    right: -20px;
    width: 100%;
    height: 100%;
    border: 3px solid var(--color-secondary);
    border-radius: var(--radius-lg);
    z-index: -1;
    opacity: 0.3;
}

/* ========================================
   INTRODUCTION SECTION
   ======================================== */

.introduction {
    background: white;
    padding: var(--spacing-3xl) 0;
    box-shadow: var(--shadow-sm);
}

/* ========================================
   PORTFOLIO NAVIGATION SECTION
   ======================================== */

.portfolio-nav-section {
    background: var(--color-background);
    padding: var(--spacing-2xl);
}

.portfolio-nav-section .container {
    max-width: 100%;
    width: 100%;
    padding: 0;
}

.portfolio-nav {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 0;
}

.portfolio-nav-item {
    background: white;
    padding: var(--spacing-xl);
    border-radius: 0;
    text-decoration: none;
    color: inherit;
    text-align: center;
    transition: all var(--transition-base) var(--ease-out);
    box-shadow: none;
    border-right: 1px solid var(--color-neutral-200);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-sm);
}

.portfolio-nav-item:last-child {
    border-right: none;
}

.portfolio-nav-item:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
}

.portfolio-nav-icon {
    width: 64px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--color-secondary-light), var(--color-secondary));
    border-radius: var(--radius-lg);
    color: white;
    transition: all var(--transition-base) var(--ease-out);
}

.portfolio-nav-item:hover .portfolio-nav-icon {
    transform: scale(1.1);
    box-shadow: var(--shadow-secondary);
}

.portfolio-nav-item h3 {
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-semibold);
    color: var(--color-primary);
    margin-bottom: 0;
    transition: color var(--transition-base) ease;
}

.portfolio-nav-item:hover h3 {
    color: var(--color-secondary);
}

.portfolio-nav-item p {
    font-size: var(--font-size-sm);
    color: var(--color-text-light);
    margin-bottom: 0;
    line-height: var(--line-height-normal);
}

.introduction h2 {
    text-align: center;
    margin-bottom: var(--spacing-lg);
    position: relative;
    display: inline-block;
    left: 50%;
    transform: translateX(-50%);
}

.introduction h2::after {
    content: '';
    position: absolute;
    bottom: -12px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background: linear-gradient(
        to right,
        var(--color-secondary),
        var(--color-accent)
    );
    border-radius: 2px;
}

.introduction p {
    font-size: clamp(1rem, 1.5vw, 1.125rem);
    line-height: var(--line-height-relaxed);
    color: var(--color-text);
    max-width: 900px;
    margin: 0 auto;
    text-align: center;
}

/* ========================================
   FEATURED PROJECTS SECTION
   ======================================== */

.highlights {
    padding: var(--spacing-3xl) 0;
    background: var(--color-background);
}

.highlights h2 {
    text-align: center;
    margin-bottom: var(--spacing-2xl);
    position: relative;
    display: inline-block;
    left: 50%;
    transform: translateX(-50%);
}

.highlights h2::after {
    content: '';
    position: absolute;
    bottom: -12px;
    left: 50%;
    transform: translateX(-50%);
    width: 120px;
    height: 4px;
    background: linear-gradient(
        to right,
        var(--color-secondary),
        var(--color-accent)
    );
    border-radius: 2px;
}

/* Projects Grid */
.projects {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-lg);
}

/* Project Card */
.project {
    background: white;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-base) var(--ease-out);
    position: relative;
}

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

.project a {
    text-decoration: none;
    color: inherit;
    display: block;
}

/* Project Image */
.project-image-wrapper {
    position: relative;
    width: 100%;
    overflow: hidden;
}

.project img {
    width: 100%;
    height: auto;
    display: block;
    transition: transform var(--transition-base) var(--ease-out);
}

.project:hover img {
    transform: scale(1.08);
}

/* Gradient overlay for better text readability */
.project-image-wrapper::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        to top,
        rgba(44, 62, 80, 0.4) 0%,
        transparent 50%
    );
    pointer-events: none;
}

/* Project Content */
.project-content {
    padding: var(--spacing-md);
}

.project h3 {
    font-size: clamp(1.125rem, 2vw, 1.375rem);
    font-weight: var(--font-weight-semibold);
    color: var(--color-primary);
    margin-bottom: var(--spacing-sm);
    line-height: 1.3;
    transition: color var(--transition-base) ease;
}

.project:hover h3 {
    color: var(--color-secondary);
}

.project p {
    font-size: var(--font-size-sm);
    line-height: var(--line-height-normal);
    color: var(--color-text-light);
    margin-bottom: 0;

    /* Truncate to 4 lines */
    display: -webkit-box;
    -webkit-line-clamp: 4;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* External link indicator */
.project a[target="_blank"]::after {
    content: '↗';
    position: absolute;
    top: var(--spacing-sm);
    right: var(--spacing-sm);
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(52, 152, 219, 0.9);
    color: white;
    border-radius: 50%;
    font-size: 1rem;
    opacity: 0;
    transform: translate(8px, -8px);
    transition: all var(--transition-base) var(--ease-out);
}

.project:hover a[target="_blank"]::after {
    opacity: 1;
    transform: translate(0, 0);
}

/* ========================================
   RESPONSIVE DESIGN
   ======================================== */

@media (max-width: 992px) {
    .hero .container {
        grid-template-columns: 1fr;
        gap: var(--spacing-xl);
        text-align: center;
    }

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

    .hero h1::after {
        left: 50%;
        transform: translateX(-50%);
    }

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

    .hero-image::before {
        display: none;
    }

    .projects {
        grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
        gap: var(--spacing-md);
    }
}

@media (max-width: 768px) {
    .hero {
        min-height: auto;
        padding: var(--spacing-2xl) 0;
    }

    .hero::after {
        width: 120%;
        height: 120%;
    }

    .cta-buttons {
        flex-direction: column;
        width: 100%;
    }

    .cta-buttons .btn {
        width: 100%;
        justify-content: center;
    }

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

    .introduction,
    .highlights {
        padding: var(--spacing-xl) 0;
    }
}

@media (max-width: 480px) {
    .hero-image img {
        max-width: 100%;
    }

    .project-content {
        padding: var(--spacing-sm);
    }
}

/* ========================================
   ACCESSIBILITY
   ======================================== */

.project a:focus-visible {
    outline: 3px solid var(--color-secondary);
    outline-offset: 4px;
}

.cta-buttons .btn:focus-visible {
    outline: 3px solid white;
    outline-offset: 4px;
}

/* ========================================
   LOADING ANIMATIONS
   ======================================== */

.hero-content {
    animation: fadeInUp 0.8s var(--ease-out) backwards;
}

.hero-image {
    animation: fadeInUp 0.8s var(--ease-out) 0.2s backwards;
}

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

.project {
    opacity: 0;
    animation: fadeInUp 0.6s var(--ease-out) forwards;
}

.project:nth-child(1) { animation-delay: 0.1s; }
.project:nth-child(2) { animation-delay: 0.2s; }
.project:nth-child(3) { animation-delay: 0.3s; }
.project:nth-child(4) { animation-delay: 0.4s; }