/* ============================================
   REUSABLE COMPONENTS
   ============================================ */

/* ===== SECTION TITLES ===== */
.section-title {
    font-size: 2.5rem;
    margin-top: 3rem;
    text-align: center;
    color: var(--title-color);
    margin-bottom: var(--mb-4);
    font-weight: var(--font-bold);
    position: relative;
    padding-bottom: 1rem;
}

.section-title::after {
    content: '';
    position: absolute;
    left: 50%;
    bottom: 0;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background: var(--primary-color);
    border-radius: 5px;
}

/* ===== BUTTONS ===== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 1rem 2rem;
    background: transparent;
    color: var(--primary-color);
    text-decoration: none;
    border-radius: var(--border-radius);
    border: 1px solid var(--primary-color);
    transition: border-color 0.2s ease, color 0.2s ease;
    font-weight: var(--font-semi-bold);
    cursor: pointer;
    font-size: var(--normal-font-size);
}

.btn:hover {
    border-color: var(--primary-dark);
    color: var(--primary-dark);
}

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

.btn-secondary:hover {
    border-color: var(--text-dark);
    color: var(--text-dark);
}

/* ===== CARDS ===== */
.card {
    background: var(--card-bg);
    border-radius: var(--border-radius-lg);
    border: 1px solid var(--border-color);
    transition: border-color 0.2s ease;
    overflow: hidden;
}

.card:hover {
    border-color: var(--primary-color);
}

.card-header {
    padding: var(--mb-2);
    border-bottom: 1px solid var(--border-color);
}

.card-body {
    padding: var(--mb-2);
}

.card-footer {
    padding: var(--mb-2);
    border-top: 1px solid var(--border-color);
    background: rgba(0, 0, 0, 0.02);
}

/* ===== BRANDS SECTION ===== */
.brands-section {
    padding: var(--mb-4) 0;
    overflow: hidden;
    position: relative;
    width: 100%;
    background: var(--container-color);
}

.brands-section .section-title {
    margin-bottom: var(--mb-3);
}

.brands-slider-container {
    position: relative;
    overflow: hidden;
    padding: 40px 0;
}

.brands-slider {
    display: flex;
    align-items: center;
    width: fit-content;
    animation: slide 30s linear infinite;
    will-change: transform;
}

.brand-item {
    flex: 0 0 280px;
    padding: 1.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 1rem;
}

.brand-item img {
    max-width: 100%;
    height: auto;
    max-height: 80px;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    filter: none;
}

.brand-item img:hover {
    transform: scale(1.15);
    filter: none;
}

@keyframes slide {
    /* 
     * Enhanced infinite loop mechanism:
     * - Smooth transition with easing
     * - Optimized timing for better visual flow
     */
    0% {
        transform: translateX(0);
    }
    100% {
        transform: translateX(-50%);
    }
}

/* Pause animation on hover with smooth transition */
.brands-slider-container:hover .brands-slider {
    animation-play-state: paused;
    transition: all 0.3s ease;
}

/* Add subtle shadow and border for better visual appeal */
.brand-item {
    background: rgba(255, 255, 255, 0.8);
    border-radius: 12px;
    border: 1px solid rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
}

.brand-item:hover {
    background: rgba(255, 255, 255, 1);
    border-color: rgba(0, 0, 0, 0.1);
    transform: translateY(-2px);
}

/* ===== PROJECT CARDS ===== */
.project-card {
    background: var(--card-bg);
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
    height: 100%;
    border: 1px solid var(--border-color);
    cursor: pointer;
    position: relative;
}

.project-card:hover {
    border-color: var(--primary-color);
}

.project-image {
    position: relative;
    padding-top: 60%;
    overflow: hidden;
    background: linear-gradient(135deg, #f5f7fa 0%, #e4e8eb 100%);
    transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.project-image img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.project-content {
    padding: var(--mb-2);
    flex: 1;
    display: flex;
    flex-direction: column;
}

.project-content h3 {
    color: var(--title-color);
    font-size: 1.4rem;
    margin-bottom: var(--mb-0-75);
    font-weight: var(--font-semi-bold);
    line-height: 1.3;
}

.project-meta {
    display: flex;
    flex-wrap: wrap;
    gap: var(--mb-1);
    font-size: 0.85rem;
    color: var(--text-light);
    margin-bottom: var(--mb-1);
}

.project-meta span {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.3rem 1rem;
    color: var(--text-light);
}

.project-description {
    color: var(--text-color);
    font-size: 0.95rem;
    margin-bottom: var(--mb-1-5);
    line-height: 1.7;
    flex: 1;
    opacity: 0.9;
}

/* ===== TAGS ===== */
.tag,
.feature-tag,
.skill-tag {
    background-color: transparent;
    color: var(--primary-color);
    font-size: 0.75rem;
    font-weight: var(--font-semi-bold);
    padding: 0.35rem 0.9rem;
    border-radius: 20px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    transition: border-color 0.2s ease;
    border: 1px solid var(--primary-color);
    display: inline-block;
}

.feature-tag:hover,
.skill-tag:hover {
    border-color: var(--primary-dark);
    color: var(--primary-dark);
}

.tag-container {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-top: auto;
    padding-top: var(--mb-1-5);
    border-top: 1px dashed var(--border-color);
}

/* ===== SECTIONS ===== */
.section {
    position: relative;
    overflow: hidden;
}

.section-header {
    text-align: center;
    margin-bottom: var(--mb-4);
}

.section-header h2 {
    font-size: clamp(2.2rem, 4vw, 3.2rem);
    font-weight: 700;
    color: var(--title-color);
    margin-bottom: var(--mb-1-5);
    position: relative;
    display: inline-block;
    letter-spacing: -0.02em;
    line-height: 1.1;
}

.section-header h2::after {
    content: '';
    position: absolute;
    bottom: -0.75rem;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 2px;
    background: var(--primary-color);
    border-radius: 1px;
}



.section-header p {
    font-size: 1.05rem;
    color: var(--text-light);
    max-width: 650px;
    margin: 0 auto;
    line-height: 1.7;
    font-weight: 400;
}

/* ===== ABOUT-CONTACT SECTION ===== */
.about-contact-section {
    background: transparent;
    padding: 4rem 0;
    margin: 2rem 0;
}

.about-contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 clamp(2rem, 8vw, 6rem);
}

.about-card,
.contact-card {
    background: white;
    border-radius: var(--border-radius-lg);
    padding: 2.5rem;
    transition: border-color 0.2s ease;
    border: 1px solid var(--border-color);
}

.about-card:hover,
.contact-card:hover {
    border-color: var(--primary-color);
}

.about-card .section-header,
.contact-card .section-header {
    text-align: left;
    margin-bottom: 1.5rem;
}

.about-card .section-header h2,
.contact-card .section-header h2 {
    font-size: 1.8rem;
    margin-bottom: 0.5rem;
}

.about-card .section-header h2::after,
.contact-card .section-header h2::after,
.about-card .section-header h2::before,
.contact-card .section-header h2::before {
    display: none;
}

.about-highlights {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
    margin: 1.5rem 0;
}

.highlight-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem;
    background: transparent;
    border-radius: var(--border-radius);
    transition: border-color 0.2s ease;
    border: 1px solid var(--border-color);
}

.highlight-item:hover {
    border-color: var(--primary-color);
}

.highlight-item i {
    color: var(--primary-color);
    font-size: 1.5rem;
}

.highlight-item h4 {
    margin: 0;
    color: var(--title-color);
    font-size: 1.2rem;
    font-weight: 600;
}

.highlight-item p {
    margin: 0;
    color: var(--text-light);
    font-size: 0.85rem;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem;
    background: transparent;
    border-radius: var(--border-radius);
    transition: border-color 0.2s ease;
    border: 1px solid var(--border-color);
}

.contact-item:hover {
    border-color: var(--primary-color);
}

.contact-item i {
    color: var(--primary-color);
    font-size: 1.3rem;
    width: 20px;
    text-align: center;
}

.contact-item h4 {
    margin: 0 0 0.25rem 0;
    color: var(--title-color);
    font-size: 1rem;
    font-weight: 600;
}

.contact-item p {
    margin: 0;
    color: var(--text-light);
    font-size: 0.9rem;
}

/* ===== GRIDS ===== */
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--mb-2); }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--mb-2); }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--mb-2); }
.grid-auto { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: var(--mb-2); }
.grid-responsive { display: grid; grid-template-columns: repeat(auto-fill, minmax(350px, 1fr)); gap: var(--mb-2); }

/* ===== FORM COMPONENTS ===== */
.form-group {
    margin-bottom: var(--mb-1-5);
}

.form-group label {
    display: block;
    margin-bottom: var(--mb-0-5);
    color: var(--text-dark);
    font-weight: var(--font-semi-bold);
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 1rem;
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius);
    font-size: var(--normal-font-size);
    transition: var(--transition);
    font-family: inherit;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(var(--primary-rgb), 0.1);
}

.form-status {
    padding: var(--mb-1);
    margin-bottom: var(--mb-1-5);
    border-radius: var(--border-radius);
    text-align: center;
    font-weight: var(--font-medium);
    background-color: rgba(16, 185, 129, 0.1);
    color: #059669;
}

.form-status.error {
    background-color: rgba(239, 68, 68, 0.1);
    color: #dc2626;
}

/* ===== ANIMATIONS ===== */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

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

@keyframes fadeInScale {
    from { opacity: 0; transform: scale(0.8); }
    to { opacity: 1; transform: scale(1); }
}

@keyframes slideInLeft {
    from { opacity: 0; transform: translateX(-30px); }
    to { opacity: 1; transform: translateX(0); }
}

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

@keyframes shimmer {
    0% { transform: translateX(-100%) translateY(-100%) rotate(30deg); }
    100% { transform: translateX(100%) translateY(100%) rotate(30deg); }
}

@keyframes float {
    0%, 100% { transform: translateY(0) rotate(0deg); }
    50% { transform: translateY(-15px) rotate(2deg); }
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}