/* ============================================
   COMPONENTS SYSTEM
   Maharat Al-Muhandis Website
   ============================================ */

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

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-6);
    font-family: var(--font-primary);
    font-size: var(--text-base);
    font-weight: var(--font-semibold);
    line-height: var(--leading-normal);
    text-decoration: none;
    border: 2px solid transparent;
    border-radius: var(--radius-lg);
    cursor: pointer;
    transition: var(--transition-all);
    white-space: nowrap;
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* Primary Button */
.btn-primary {
    background-color: var(--color-blue);
    color: var(--color-white);
    border-color: var(--color-blue);
}

.btn-primary:hover:not(:disabled) {
    background-color: var(--color-blue-dark);
    border-color: var(--color-blue-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-primary:active:not(:disabled) {
    transform: translateY(0);
}

/* Secondary Button */
.btn-secondary {
    background-color: var(--color-periwinkle);
    color: var(--color-black);
    border-color: var(--color-periwinkle);
}

.btn-secondary:hover:not(:disabled) {
    background-color: var(--color-periwinkle-dark);
    border-color: var(--color-periwinkle-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* Outline Button */
.btn-outline {
    background-color: transparent;
    color: var(--color-blue);
    border-color: var(--color-blue);
}

.btn-outline:hover:not(:disabled) {
    background-color: var(--color-blue);
    color: var(--color-white);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* Outline Light (for dark backgrounds) */
.btn-outline-light {
    background-color: transparent;
    color: var(--color-white);
    border-color: var(--color-periwinkle);
}

.btn-outline-light:hover:not(:disabled) {
    background-color: var(--color-periwinkle);
    color: var(--color-black);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

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

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

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

.card {
    background-color: var(--color-white);
    border-radius: var(--radius-xl);
    padding: var(--space-6);
    box-shadow: var(--shadow-md);
    transition: var(--transition-all);
}

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

/* Glass Card */
.card-glass {
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-xl);
    padding: var(--space-6);
    transition: var(--transition-all);
}

.card-glass:hover {
    background: rgba(255, 255, 255, 0.15);
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
}

/* Service Card */
.service-card {
    text-align: center;
    padding: var(--space-8);
}

.service-card__icon {
    width: 64px;
    height: 64px;
    margin: 0 auto var(--space-4);
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--color-periwinkle-light);
    border-radius: var(--radius-xl);
    color: var(--color-blue);
    font-size: var(--text-4xl);
}

.service-card__title {
    font-size: var(--text-xl);
    font-weight: var(--font-bold);
    color: var(--color-black);
    margin-bottom: var(--space-3);
}

.service-card__description {
    font-size: var(--text-base);
    color: var(--color-gray-600);
    line-height: var(--leading-relaxed);
}

/* Arm Card */
.arm-card {
    position: relative;
    overflow: hidden;
    padding: var(--space-10);
    text-align: center;
}

.arm-card__logo {
    width: 120px;
    height: auto;
    margin: 0 auto var(--space-6);
}

.arm-card__title {
    font-size: var(--text-2xl);
    font-weight: var(--font-bold);
    color: var(--color-black);
    margin-bottom: var(--space-4);
}

.arm-card__description {
    font-size: var(--text-base);
    color: var(--color-gray-600);
    line-height: var(--leading-relaxed);
    margin-bottom: var(--space-6);
}

/* Article Card */
.article-card {
    display: flex;
    flex-direction: column;
    height: 100%;
}

.article-card__header {
    margin-bottom: var(--space-4);
}

.article-card__title {
    font-size: var(--text-xl);
    font-weight: var(--font-bold);
    color: var(--color-black);
    margin-bottom: var(--space-2);
    line-height: var(--leading-tight);
}

.article-card__meta {
    display: flex;
    gap: var(--space-4);
    font-size: var(--text-sm);
    color: var(--color-gray-500);
}

.article-card__abstract {
    font-size: var(--text-base);
    color: var(--color-gray-600);
    line-height: var(--leading-relaxed);
    margin-bottom: var(--space-6);
    flex-grow: 1;
}

.article-card__footer {
    margin-top: auto;
}

/* ========== NAVIGATION ========== */

.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: var(--z-fixed);
    background-color: var(--color-white);
    box-shadow: var(--shadow-sm);
    transition: var(--transition-all);
}

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

.navbar__container {
    max-width: var(--container-2xl);
    margin: 0 auto;
    padding: var(--space-4) var(--space-6);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.navbar__logo {
    height: 75px;
    width: auto;
}

.navbar__menu {
    display: flex;
    align-items: center;
    gap: var(--space-8);
    list-style: none;
    margin: 0;
    padding: 0;
}

.navbar__link {
    font-family: var(--font-primary);
    font-size: var(--text-base);
    font-weight: var(--font-medium);
    color: var(--color-black);
    text-decoration: none;
    transition: var(--transition-colors);
    position: relative;
}

.navbar__link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--color-blue);
    transition: var(--transition-all);
}

.navbar__link:hover::after,
.navbar__link.active::after {
    width: 100%;
}

.navbar__link:hover,
.navbar__link.active {
    color: var(--color-blue);
}

/* Mobile Menu Toggle */
.navbar__toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--space-2);
}

.navbar__toggle span {
    width: 24px;
    height: 2px;
    background-color: var(--color-black);
    transition: var(--transition-all);
}

@media (max-width: 768px) {
    .navbar__toggle {
        display: flex;
    }

    .navbar__menu {
        position: fixed;
        top: 70px;
        left: 0;
        right: 0;
        background-color: var(--color-white);
        flex-direction: column;
        padding: var(--space-6);
        box-shadow: var(--shadow-lg);
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: var(--transition-all);
    }

    .navbar__menu.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }
}

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

.footer {
    background-color: var(--color-black);
    color: var(--color-white);
    padding: var(--space-16) 0 var(--space-8);
    position: relative;
    overflow: hidden;
}

.footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: url('../images/backgrounds/footer-bg.jpg');
    background-size: cover;
    background-position: center;
    opacity: 0.1;
    z-index: 0;
}

.footer__container {
    position: relative;
    z-index: 1;
    max-width: var(--container-2xl);
    margin: 0 auto;
    padding: 0 var(--space-6);
}

.footer__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--space-12);
    margin-bottom: var(--space-12);
}

.footer__section-title {
    font-size: var(--text-lg);
    font-weight: var(--font-bold);
    margin-bottom: var(--space-4);
    color: var(--color-periwinkle);
}

.footer__logo {
    width: 290px;
    height: auto;
    margin-bottom: var(--space-4);
    filter: brightness(0) invert(1);
}

.footer__description {
    font-size: var(--text-sm);
    line-height: var(--leading-relaxed);
    color: var(--color-gray-400);
}

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

.footer__link {
    display: block;
    padding: var(--space-2) 0;
    color: var(--color-gray-400);
    text-decoration: none;
    font-size: var(--text-sm);
    transition: var(--transition-colors);
}

.footer__link:hover {
    color: var(--color-periwinkle);
    padding-left: var(--space-2);
}

.footer__contact-item {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    margin-bottom: var(--space-3);
    font-size: var(--text-sm);
    color: var(--color-gray-400);
}

.footer__bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: var(--space-6);
    text-align: center;
    font-size: var(--text-sm);
    color: var(--color-gray-500);
}

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

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

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

.form-input,
.form-textarea,
.form-select {
    width: 100%;
    padding: var(--space-3) var(--space-4);
    font-family: var(--font-primary);
    font-size: var(--text-base);
    color: var(--color-black);
    background-color: var(--color-white);
    border: 2px solid var(--color-gray-300);
    border-radius: var(--radius-md);
    transition: var(--transition-all);
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
    outline: none;
    border-color: var(--color-blue);
    box-shadow: 0 0 0 3px rgba(26, 37, 247, 0.1);
}

.form-textarea {
    resize: vertical;
    min-height: 120px;
}

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

/* ========== ICONS ========== */

.icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 1em;
    height: 1em;
}

.icon-sm {
    font-size: var(--text-lg);
}

.icon-md {
    font-size: var(--text-2xl);
}

.icon-lg {
    font-size: var(--text-4xl);
}

.icon-xl {
    font-size: var(--text-5xl);
}

/* ========== BADGES ========== */

.badge {
    display: inline-flex;
    align-items: center;
    padding: var(--space-1) var(--space-3);
    font-size: var(--text-xs);
    font-weight: var(--font-semibold);
    border-radius: var(--radius-full);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

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

.badge-secondary {
    background-color: var(--color-periwinkle);
    color: var(--color-black);
}

.badge-success {
    background-color: var(--color-success);
    color: var(--color-white);
}

/* ========== GRID SYSTEM ========== */

.grid {
    display: grid;
    gap: var(--space-6);
}

.grid-cols-1 {
    grid-template-columns: repeat(1, 1fr);
}

.grid-cols-2 {
    grid-template-columns: repeat(2, 1fr);
}

.grid-cols-3 {
    grid-template-columns: repeat(3, 1fr);
}

.grid-cols-4 {
    grid-template-columns: repeat(4, 1fr);
}

@media (max-width: 768px) {

    .grid-cols-2,
    .grid-cols-3,
    .grid-cols-4 {
        grid-template-columns: 1fr;
    }
}

@media (min-width: 769px) and (max-width: 1024px) {

    .grid-cols-3,
    .grid-cols-4 {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* ========== BADGES ========== */

.badge {
    display: inline-block;
    padding: 4px 12px;
    border-radius: 12px;
    font-size: 12px;
    font-weight: 500;
}

.badge-primary {
    background-color: var(--color-blue-light);
    color: var(--color-blue);
}

.badge-secondary {
    background-color: var(--color-periwinkle-light);
    color: var(--color-periwinkle);
}
/* ========== NOTIFICATION BADGE ========== */

.notification-badge {
    position: absolute;
    top: -8px;
    right: -8px;
    background: linear-gradient(135deg, #ff4757, #ff6348);
    color: white;
    font-size: 11px;
    font-weight: 700;
    padding: 3px 7px;
    border-radius: 12px;
    min-width: 20px;
    text-align: center;
    box-shadow: 0 2px 8px rgba(255, 71, 87, 0.4);
    animation: pulse-badge 2s ease-in-out infinite;
}

@keyframes pulse-badge {
    0%, 100% {
        transform: scale(1);
        box-shadow: 0 2px 8px rgba(255, 71, 87, 0.4);
    }
    50% {
        transform: scale(1.1);
        box-shadow: 0 4px 12px rgba(255, 71, 87, 0.6);
    }
}

.notification-badge.new {
    animation: pulse-badge 2s ease-in-out infinite, shake 0.5s ease-in-out;
}

@keyframes shake {
    0%, 100% { transform: translateX(0) scale(1); }
    25% { transform: translateX(-3px) scale(1.1); }
    75% { transform: translateX(3px) scale(1.1); }
}