/* ============================================
   RTIM Portfolio - Component Styles
   ============================================ */

/* ============================================
   NAVIGATION - Full-Screen Hamburger Overlay
   ============================================ */

.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: var(--z-fixed);
    background: var(--bg-elevated);
    border-bottom: 1px solid var(--border-primary);
    backdrop-filter: blur(10px);
    transition: all var(--transition-base);
}

.navbar-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: var(--spacing-md);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.navbar-logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-accent);
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.navbar-logo span {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.navbar-actions {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

/* Theme Toggle Button */
.theme-toggle {
    background: var(--bg-secondary);
    border: 1px solid var(--border-primary);
    border-radius: var(--radius-full);
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.theme-toggle:hover {
    background: var(--hover-overlay);
    border-color: var(--border-accent);
    transform: scale(1.05);
}

.theme-toggle svg {
    width: 20px;
    height: 20px;
    fill: var(--text-primary);
    transition: transform var(--transition-base);
}

.theme-toggle:active svg {
    transform: rotate(20deg);
}

/* Hamburger Menu Button */
.hamburger {
    width: 44px;
    height: 44px;
    background: transparent;
    border: none;
    cursor: pointer;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 6px;
    padding: 0;
    position: relative;
    z-index: var(--z-modal);
}

.hamburger-line {
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    border-radius: var(--radius-full);
    transition: all var(--transition-base);
}

.hamburger.active .hamburger-line:nth-child(1) {
    transform: translateY(8px) rotate(45deg);
}

.hamburger.active .hamburger-line:nth-child(2) {
    opacity: 0;
}

.hamburger.active .hamburger-line:nth-child(3) {
    transform: translateY(-8px) rotate(-45deg);
}

/* Full-Screen Menu Overlay */
.menu-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    background: var(--bg-primary);
    z-index: var(--z-modal-backdrop);
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition-slow), visibility var(--transition-slow);
    overflow-y: auto;
    overflow-x: hidden;
}

.menu-overlay.active {
    opacity: 1;
    visibility: visible;
}

.menu-content {
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
    padding: calc(80px + var(--spacing-xl)) var(--spacing-2xl) var(--spacing-3xl);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.menu-nav {
    list-style: none;
    padding: 0;
    margin: 0;
}

.menu-nav li {
    margin: var(--spacing-sm) 0;
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.4s ease, transform 0.4s ease;
}

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

.menu-overlay.active .menu-nav li:nth-child(1) { transition-delay: 0.1s; }
.menu-overlay.active .menu-nav li:nth-child(2) { transition-delay: 0.15s; }
.menu-overlay.active .menu-nav li:nth-child(3) { transition-delay: 0.2s; }
.menu-overlay.active .menu-nav li:nth-child(4) { transition-delay: 0.25s; }
.menu-overlay.active .menu-nav li:nth-child(5) { transition-delay: 0.3s; }
.menu-overlay.active .menu-nav li:nth-child(6) { transition-delay: 0.35s; }
.menu-overlay.active .menu-nav li:nth-child(7) { transition-delay: 0.4s; }
.menu-overlay.active .menu-nav li:nth-child(8) { transition-delay: 0.45s; }
.menu-overlay.active .menu-nav li:nth-child(9) { transition-delay: 0.5s; }
.menu-overlay.active .menu-nav li:nth-child(10) { transition-delay: 0.55s; }

.menu-nav a {
    font-size: clamp(1.25rem, 3vw, 2rem);
    font-weight: 500;
    color: var(--text-secondary);
    transition: color var(--transition-fast);
    display: inline-block;
    position: relative;
}

.menu-nav a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--text-accent);
    transition: width var(--transition-base);
}

.menu-nav a:hover {
    color: var(--text-accent);
}

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

.menu-nav a.active {
    color: var(--text-accent);
}

.menu-divider {
    width: 60px;
    height: 1px;
    background: var(--border-primary);
    margin: var(--spacing-lg) auto;
}

/* ============================================
   FOOTER
   ============================================ */

.footer {
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-primary);
    padding: var(--spacing-2xl) 0 var(--spacing-xl);
    margin-top: var(--spacing-3xl);
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

.footer-section h4 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-accent);
    margin-bottom: var(--spacing-md);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.footer-section p,
.footer-section a {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.8;
}

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

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

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

.footer-social {
    display: flex;
    gap: var(--spacing-md);
    margin-top: var(--spacing-md);
}

.social-link {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-md);
    background: var(--bg-tertiary);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
}

.social-link:hover {
    background: var(--hover-overlay);
    transform: translateY(-2px);
}

.social-link svg {
    width: 20px;
    height: 20px;
    fill: var(--text-primary);
}

.footer-bottom {
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--border-secondary);
    text-align: center;
    color: var(--text-tertiary);
    font-size: 0.875rem;
}

/* ============================================
   BUTTONS
   ============================================ */

.btn {
    display: inline-block;
    padding: 0.875rem 1.75rem;
    font-size: 1rem;
    font-weight: 500;
    text-align: center;
    text-decoration: none;
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: var(--hover-overlay);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.btn:hover::before {
    width: 300px;
    height: 300px;
}

.btn span {
    position: relative;
    z-index: 1;
}

.btn-primary {
    background: var(--gradient-primary);
    color: var(--text-accent);
    border: 1px solid var(--border-accent);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-secondary {
    background: transparent;
    color: var(--text-primary);
    border: 1px solid var(--border-primary);
}

.btn-secondary:hover {
    border-color: var(--border-accent);
    background: var(--hover-overlay);
}

.btn-large {
    padding: 1.125rem 2.25rem;
    font-size: 1.125rem;
}

.btn-small {
    padding: 0.625rem 1.25rem;
    font-size: 0.875rem;
}

/* ============================================
   CARDS
   ============================================ */

.card {
    background: var(--gradient-card);
    border: 1px solid var(--border-primary);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    transition: all var(--transition-base);
    height: 100%;
}

.card:hover {
    border-color: var(--border-accent);
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.card-icon {
    width: 48px;
    height: 48px;
    background: var(--bg-tertiary);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-md);
}

.card-icon svg {
    width: 24px;
    height: 24px;
    fill: var(--text-primary);
}

.card-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-accent);
    margin-bottom: var(--spacing-sm);
}

.card-description {
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: var(--spacing-md);
}

.card-link {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    color: var(--text-primary);
    font-weight: 500;
    transition: gap var(--transition-fast);
}

.card-link:hover {
    gap: var(--spacing-sm);
}

.card-link svg {
    width: 16px;
    height: 16px;
    fill: currentColor;
}

/* Product Card Variant */
.product-card {
    background: var(--gradient-card);
    border: 1px solid var(--border-primary);
    border-radius: var(--radius-xl);
    overflow: hidden;
    transition: all var(--transition-base);
}

.product-card:hover {
    border-color: var(--border-accent);
    box-shadow: var(--shadow-xl);
}

.product-card-image {
    width: 100%;
    height: 200px;
    background: var(--gradient-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.product-card-image::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 100px;
    background: var(--gradient-overlay);
}

.product-card-content {
    padding: var(--spacing-lg);
}

.product-card-tag {
    display: inline-block;
    padding: 0.375rem 0.875rem;
    background: var(--bg-tertiary);
    color: var(--text-secondary);
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border-radius: var(--radius-full);
    margin-bottom: var(--spacing-sm);
}

/* ============================================
   FORMS
   ============================================ */

.form-group {
    margin-bottom: var(--spacing-lg);
}

.form-label {
    display: block;
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
}

.form-input,
.form-textarea,
.form-select {
    width: 100%;
    padding: 0.875rem 1rem;
    font-size: 1rem;
    font-family: inherit;
    color: var(--text-primary);
    background: var(--bg-secondary);
    border: 1px solid var(--border-primary);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
    outline: none;
    border-color: var(--border-accent);
    background: var(--bg-elevated);
    box-shadow: 0 0 0 3px var(--hover-overlay);
}

.form-input::placeholder,
.form-textarea::placeholder {
    color: var(--text-tertiary);
}

.form-textarea {
    min-height: 150px;
    resize: vertical;
}

.form-error {
    display: none;
    color: #ef4444;
    font-size: 0.875rem;
    margin-top: var(--spacing-xs);
}

.form-group.error .form-input,
.form-group.error .form-textarea,
.form-group.error .form-select {
    border-color: #ef4444;
}

.form-group.error .form-error {
    display: block;
}

.form-success {
    background: var(--bg-tertiary);
    color: var(--text-primary);
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    border-left: 3px solid var(--text-accent);
    margin-bottom: var(--spacing-lg);
}

/* Form Alerts */
.form-alert {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-md);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    margin-bottom: var(--spacing-xl);
    animation: slideInDown 0.4s ease-out;
}

@keyframes slideInDown {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.form-alert-success {
    background: linear-gradient(135deg, rgba(46, 125, 50, 0.15) 0%, rgba(56, 142, 60, 0.1) 100%);
    border: 1px solid rgba(76, 175, 80, 0.3);
    color: var(--text-primary);
}

.form-alert-success svg {
    color: #66bb6a;
}

.form-alert-error {
    background: linear-gradient(135deg, rgba(211, 47, 47, 0.15) 0%, rgba(244, 67, 54, 0.1) 100%);
    border: 1px solid rgba(239, 83, 80, 0.3);
    color: var(--text-primary);
}

.form-alert-error svg {
    color: #ef5350;
}

/* ============================================
   HERO SECTION
   ============================================ */

.hero {
    min-height: 80vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-hero);
    padding: var(--spacing-3xl) 0;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: repeating-linear-gradient(
        0deg,
        transparent,
        transparent 2px,
        var(--hover-overlay) 2px,
        var(--hover-overlay) 4px
    );
    opacity: 0.03;
    pointer-events: none;
}

.hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
    max-width: 900px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.hero-title {
    font-size: clamp(2.5rem, 6vw, 5rem);
    font-weight: 700;
    line-height: 1.1;
    margin-bottom: var(--spacing-md);
    background: linear-gradient(135deg, var(--text-accent) 0%, var(--text-primary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: clamp(1.125rem, 2vw, 1.5rem);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xl);
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

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

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

.section {
    padding: var(--spacing-3xl) 0;
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-2xl);
}

.section-title {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 700;
    margin-bottom: var(--spacing-md);
}

.section-subtitle {
    font-size: 1.125rem;
    color: var(--text-secondary);
    max-width: 700px;
    margin: 0 auto;
}

.section-desc {
    font-size: 1.0625rem;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: var(--spacing-md);
}

.bg-pattern {
    background: var(--bg-secondary);
    position: relative;
}

.bg-pattern::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: repeating-linear-gradient(
        45deg,
        transparent,
        transparent 10px,
        var(--hover-overlay) 10px,
        var(--hover-overlay) 20px
    );
    opacity: 0.02;
    pointer-events: none;
}

/* ============================================
   GRID UTILITIES
   ============================================ */

.grid-2-cols {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-2xl);
    align-items: start;
}

.grid-3-cols {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-xl);
}

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

/* Responsive Padding Utilities */
.py-3xl {
    padding-top: var(--spacing-3xl);
    padding-bottom: var(--spacing-3xl);
}

/* ============================================
   BADGE
   ============================================ */

.badge {
    display: inline-flex;
    align-items: center;
    padding: 0.5rem 1rem;
    background: var(--bg-tertiary);
    color: var(--text-secondary);
    font-size: 0.875rem;
    font-weight: 600;
    border-radius: var(--radius-full);
    border: 1px solid var(--border-primary);
}

/* ============================================
   DIVIDER
   ============================================ */

.divider {
    width: 100%;
    height: 1px;
    background: var(--border-primary);
    margin: var(--spacing-xl) 0;
}

/* ============================================
   RESPONSIVE ADJUSTMENTS
   ============================================ */

@media (max-width: 768px) {
    .navbar-container {
        padding: var(--spacing-sm) var(--spacing-md);
    }

    .menu-content {
        padding: var(--spacing-xl);
    }

    .menu-nav a {
        font-size: 1.5rem;
    }

    .hero {
        min-height: 70vh;
        padding: var(--spacing-2xl) 0;
    }

    .hero-cta {
        flex-direction: column;
        align-items: center;
    }

    .hero-cta .btn {
        width: 100%;
        max-width: 300px;
    }

    .footer-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }

    .card {
        padding: var(--spacing-md);
    }

    .grid-2-cols {
        grid-template-columns: 1fr;
        gap: var(--spacing-xl);
    }

    .grid-3-cols {
        grid-template-columns: 1fr;
    }
}