/* Components - Tech Indigo Theme with Dark Mode */

/* Theme Toggle Button */
.theme-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: var(--color-background-alt);
    border: 2px solid var(--color-border);
    color: var(--color-text);
    cursor: pointer;
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
}

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

.theme-toggle svg {
    width: 20px;
    height: 20px;
    transition: transform var(--transition-slow);
}

.theme-toggle .sun-icon {
    position: absolute;
    opacity: 1;
    transform: rotate(0deg) scale(1);
}

.theme-toggle .moon-icon {
    position: absolute;
    opacity: 0;
    transform: rotate(90deg) scale(0);
}

[data-theme="dark"] .theme-toggle .sun-icon {
    opacity: 0;
    transform: rotate(-90deg) scale(0);
}

[data-theme="dark"] .theme-toggle .moon-icon {
    opacity: 1;
    transform: rotate(0deg) scale(1);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-3) var(--space-6);
    font-size: var(--text-base);
    font-weight: 600;
    border-radius: 0.5rem;
    transition: all var(--transition-base);
    text-decoration: none;
    cursor: pointer;
    border: 2px solid transparent;
}

.btn-primary {
    background: linear-gradient(
        135deg,
        var(--color-primary) 0%,
        var(--color-accent) 100%
    );
    color: white;
    border-color: transparent;
}

.btn-primary:hover {
    background: linear-gradient(
        135deg,
        var(--color-primary-dark) 0%,
        var(--color-accent) 100%
    );
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 10px 20px -5px rgba(79, 70, 229, 0.4);
}

.btn-secondary {
    background-color: transparent;
    color: var(--color-primary);
    border: 2px solid var(--color-primary);
}

.btn-secondary:hover {
    background-color: var(--color-primary);
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 10px 20px -5px rgba(79, 70, 229, 0.3);
}

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

.btn-dark:hover {
    background-color: var(--color-text);
    color: white;
    transform: translateY(-2px);
}

.btn-lg {
    padding: var(--space-4) var(--space-8);
    font-size: var(--text-lg);
}

.btn-sm {
    padding: var(--space-2) var(--space-4);
    font-size: var(--text-sm);
}

/* Cards */
.card {
    background-color: var(--color-card);
    border-radius: 1rem;
    padding: var(--space-8);
    box-shadow: var(--shadow-md);
    border: 1px solid var(--color-border);
    transition: all var(--transition-base);
}

.card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
    background-color: var(--color-card-hover);
}

.card-icon {
    width: 3.5rem;
    height: 3.5rem;
    background: linear-gradient(
        135deg,
        var(--color-primary) 0%,
        var(--color-accent) 100%
    );
    border-radius: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--space-6);
    box-shadow: 0 10px 20px -5px rgba(79, 70, 229, 0.3);
}

.card-icon svg {
    width: 1.75rem;
    height: 1.75rem;
    color: white;
}

/* Navigation */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--header-height);
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    z-index: 1000;
    border-bottom: 1px solid var(--color-border-light);
    transition: all var(--transition-slow);
}

[data-theme="dark"] .header {
    background-color: rgba(15, 10, 30, 0.95);
    border-bottom-color: var(--color-border);
}

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

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

.logo {
    display: flex;
    align-items: baseline;
    gap: var(--space-2);
    text-decoration: none;
}

.logo-img {
    width: 70px;
    height: auto;
    display: block;
    align-self: center;
}

.logo-text {
    display: none;
    font-size: var(--text-4xl);
    font-weight: 800;
    background: linear-gradient(
        135deg,
        var(--color-primary) 0%,
        var(--color-accent) 100%
    );
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

@media (min-width: 1024px) {
    .logo-text {
        display: block;
    }
}

.nav {
    display: none;
    align-items: center;
    gap: var(--space-8);
}

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

.nav-link {
    font-size: var(--text-base);
    font-weight: 500;
    color: var(--color-text);
    text-decoration: none;
    transition: color var(--transition-fast);
    position: relative;
}

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

.nav-link::after {
    content: "";
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(
        90deg,
        var(--color-primary) 0%,
        var(--color-accent) 100%
    );
    transition: width var(--transition-base);
}

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

/* Mobile Menu */
.mobile-menu-btn {
    display: flex;
    flex-direction: column;
    gap: 5px;
    padding: var(--space-2);
    background: none;
    border: none;
    cursor: pointer;
}

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

.mobile-menu-btn span {
    display: block;
    width: 24px;
    height: 2px;
    background-color: var(--color-secondary);
    transition: all var(--transition-base);
}

.mobile-menu-btn.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

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

.mobile-menu-btn.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

.mobile-nav {
    display: none;
    position: absolute;
    top: var(--header-height);
    left: 0;
    right: 0;
    background-color: var(--color-card);
    border-bottom: 1px solid var(--color-border);
    padding: var(--space-6);
    box-shadow: var(--shadow-lg);
}

.mobile-nav.active {
    display: block;
}

.mobile-nav-link {
    display: block;
    padding: var(--space-4) 0;
    font-size: var(--text-lg);
    font-weight: 500;
    color: var(--color-text);
    text-decoration: none;
    border-bottom: 1px solid var(--color-border-light);
}

.mobile-nav-link:last-child {
    border-bottom: none;
}

/* Forms */
.form-group {
    margin-bottom: var(--space-6);
}

.form-label {
    display: block;
    font-size: var(--text-sm);
    font-weight: 500;
    color: var(--color-text);
    margin-bottom: var(--space-2);
}

.form-input,
.form-textarea,
.form-select {
    width: 100%;
    padding: var(--space-3) var(--space-4);
    font-size: var(--text-base);
    border: 2px solid var(--color-border);
    border-radius: 0.5rem;
    background-color: var(--color-card);
    color: var(--color-text);
    transition: all var(--transition-fast);
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.2);
}

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

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

.form-error {
    display: block;
    font-size: var(--text-sm);
    color: #ef4444;
    margin-top: var(--space-2);
}

.form-success {
    background-color: rgba(79, 70, 229, 0.1);
    border: 1px solid var(--color-primary);
    color: var(--color-primary);
    padding: var(--space-4);
    border-radius: 0.5rem;
    margin-bottom: var(--space-6);
}

/* Page Header */
.page-header {
    padding-top: calc(var(--header-height) + var(--space-16));
    padding-bottom: var(--space-16);
    background: linear-gradient(
        135deg,
        var(--color-background-alt) 0%,
        var(--color-background) 100%
    );
}

[data-theme="dark"] .page-header {
    background: linear-gradient(
        135deg,
        var(--color-background-dark) 0%,
        var(--color-background) 100%
    );
}

.page-header h1 {
    margin-bottom: var(--space-4);
}

.page-header p {
    font-size: var(--text-xl);
    color: var(--color-text-light);
    max-width: 600px;
}

/* Section Header */
.section-header {
    text-align: center;
    max-width: 600px;
    margin: 0 auto var(--space-16);
}

.section-header h2 {
    margin-bottom: var(--space-4);
}

.section-header p {
    font-size: var(--text-lg);
}

/* Tag/Badge */
.tag {
    display: inline-block;
    padding: var(--space-1) var(--space-3);
    font-size: var(--text-sm);
    font-weight: 600;
    background: linear-gradient(
        135deg,
        var(--color-primary) 0%,
        var(--color-accent) 100%
    );
    color: white;
    border-radius: 9999px;
}

/* Footer */
.footer {
    background: linear-gradient(135deg, #1e1b4b 0%, #0f0a1e 100%);
    color: white;
    padding-top: var(--space-16);
    padding-bottom: var(--space-8);
}

.footer-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-12);
    margin-bottom: var(--space-12);
}

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

.footer-logo {
    font-size: var(--text-2xl);
    font-weight: 800;
    background: linear-gradient(135deg, #818cf8 0%, #a78bfa 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-decoration: none;
    margin-bottom: var(--space-4);
    display: inline-block;
}

.footer-desc {
    color: #a5b4fc;
    margin-bottom: var(--space-6);
}

.footer-title {
    font-size: var(--text-lg);
    font-weight: 600;
    color: white;
    margin-bottom: var(--space-4);
}

.footer-links {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}

.footer-link {
    color: #a5b4fc;
    text-decoration: none;
    transition: color var(--transition-fast);
}

.footer-link:hover {
    color: white;
}

.footer-bottom {
    padding-top: var(--space-8);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    text-align: center;
    color: #a5b4fc;
    font-size: var(--text-sm);
}

/* Language Selector */
.language-selector {
    position: relative;
    display: flex;
    align-items: center;
}

.language-toggle {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-3);
    background-color: var(--color-background-alt);
    border: 2px solid var(--color-border);
    border-radius: 0.5rem;
    color: var(--color-text);
    font-size: var(--text-sm);
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-base);
}

.language-toggle:hover {
    background-color: var(--color-primary);
    border-color: var(--color-primary);
    color: white;
}

.language-toggle .current-lang {
    font-size: var(--text-lg);
}

.language-toggle .lang-code {
    text-transform: uppercase;
}

.language-toggle .dropdown-arrow {
    transition: transform var(--transition-base);
}

.language-toggle[aria-expanded="true"] .dropdown-arrow {
    transform: rotate(180deg);
}

.language-dropdown {
    position: absolute;
    top: calc(100% + var(--space-2));
    right: 0;
    min-width: 160px;
    background-color: var(--color-card);
    border: 1px solid var(--color-border);
    border-radius: 0.75rem;
    box-shadow: var(--shadow-xl);
    padding: var(--space-2);
    z-index: 1001;
}

.language-option {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    width: 100%;
    padding: var(--space-3);
    background: none;
    border: none;
    border-radius: 0.5rem;
    color: var(--color-text);
    font-size: var(--text-sm);
    text-align: left;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.language-option:hover {
    background-color: var(--color-background-alt);
}

.language-option.active {
    background-color: var(--color-primary);
    color: white;
}

.language-option .lang-flag {
    font-size: var(--text-lg);
}

.language-option .lang-name {
    font-weight: 500;
}

/* Mobile Language Selector */
@media (max-width: 767px) {
    .language-selector {
        margin-left: auto;
        margin-right: var(--space-4);
    }

    .language-toggle {
        padding: var(--space-2);
    }

    .language-toggle .lang-code {
        display: none;
    }

    .language-dropdown {
        right: 0;
        left: auto;
        min-width: 140px;
    }
}