/* ===== DESIGN SYSTEM ===== */
:root {
    --color-bg: #f8fafc;
    --color-bg-alt: #f1f5f9;
    --color-card: #ffffff;
    --color-card-border: #e2e8f0;
    --color-card-hover-border: rgba(37, 99, 235, 0.3);
    --color-primary: #2563eb;
    --color-primary-hover: #1d4ed8;
    --color-text: #475569;
    --color-text-heading: #0f172a;
    --color-text-muted: #64748b;
    --font-main: 'Inter', system-ui, -apple-system, sans-serif;
    --transition: all 0.3s ease;
    --card-radius: 16px;
    --card-padding: 2rem;
    --icon-size: 56px;
    --icon-radius: 14px;
}

/* ===== GLOBAL ===== */
body {
    font-family: var(--font-main);
    color: var(--color-text);
    background: var(--color-bg);
    overflow-x: hidden;
}

section {
    padding: 5rem 0;
}

.section-title {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    color: var(--color-text-heading);
}

.section-subtitle {
    color: var(--color-text-muted);
    font-size: 1.1rem;
    margin-bottom: 3rem;
}

.accent-line {
    width: 60px;
    height: 3px;
    background: var(--color-primary);
    border: none;
    margin: 1rem auto 1.5rem;
}

/* ===== NAVBAR ===== */
.navbar {
    padding: 1rem 0;
    transition: var(--transition);
    background: transparent !important;
}

.navbar.scrolled {
    background: rgba(255, 255, 255, 0.95) !important;
    backdrop-filter: blur(10px);
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.08);
}

.navbar .nav-link {
    font-weight: 500;
    font-size: 0.9rem;
    letter-spacing: 0.5px;
    text-transform: uppercase;
    padding: 0.5rem 1rem !important;
    transition: var(--transition);
    color: var(--color-text-heading) !important;
}

.navbar .nav-link:hover,
.navbar .nav-link.active-link {
    color: var(--color-primary) !important;
}

.navbar-brand {
    font-weight: 700;
    font-size: 1.25rem;
    letter-spacing: -0.5px;
    color: var(--color-text-heading) !important;
}

.navbar-toggler {
    border-color: var(--color-card-border) !important;
}

/* ===== HERO ===== */
.hero {
    min-height: 100vh;
    background: linear-gradient(135deg, #f8fafc 0%, #eff6ff 100%);
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
}

.hero::after {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(37, 99, 235, 0.06) 0%, transparent 70%);
    border-radius: 50%;
}

.hero-tag {
    display: inline-block;
    padding: 0.4rem 1rem;
    background: rgba(37, 99, 235, 0.08);
    border: 1px solid rgba(37, 99, 235, 0.2);
    border-radius: 50px;
    color: var(--color-primary);
    font-size: 0.85rem;
    font-weight: 500;
    margin-bottom: 1.5rem;
}

.hero h1 {
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1.1;
    color: var(--color-text-heading);
    margin-bottom: 1.5rem;
}

.hero h1 .text-accent {
    color: var(--color-primary);
}

.hero p {
    font-size: 1.15rem;
    color: var(--color-text-muted);
    line-height: 1.7;
    max-width: 540px;
}

.hero-buttons .btn {
    padding: 0.75rem 2rem;
    font-weight: 600;
    font-size: 0.95rem;
    border-radius: 8px;
    transition: var(--transition);
}

.btn-accent {
    background: var(--color-primary);
    color: #fff;
    border: none;
}

.btn-accent:hover {
    background: var(--color-primary-hover);
    color: #fff;
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(37, 99, 235, 0.25);
}

.btn-outline-dark:hover {
    transform: translateY(-2px);
}

/* ===== SERVICES ===== */
.services {
    background: var(--color-bg-alt);
}

.service-card {
    background: var(--color-card);
    border: 1px solid var(--color-card-border);
    border-radius: var(--card-radius);
    padding: var(--card-padding);
    transition: var(--transition);
    height: 100%;
    position: relative;
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.07);
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--color-primary);
    transform: scaleX(0);
    transition: transform 0.4s ease;
}

.service-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.1);
    border-color: var(--color-card-hover-border);
}

.service-card:hover::before {
    transform: scaleX(1);
}

.service-icon {
    width: var(--icon-size);
    height: var(--icon-size);
    background: rgba(37, 99, 235, 0.08);
    border-radius: var(--icon-radius);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.25rem;
    font-size: 1.5rem;
    color: var(--color-primary);
    transition: var(--transition);
}

.service-card:hover .service-icon {
    background: var(--color-primary);
    color: #fff;
    transform: scale(1.1);
}

.service-card h5 {
    font-weight: 700;
    margin-bottom: 0.75rem;
    color: var(--color-text-heading);
}

.service-card p {
    color: var(--color-text-muted);
    font-size: 0.95rem;
    margin-bottom: 0;
}

/* ===== PORTFOLIO ===== */
.portfolio-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    background: var(--color-card);
    border: 1px solid var(--color-card-border);
    border-radius: var(--card-radius);
    padding: 2.5rem var(--card-padding) var(--card-padding);
    text-decoration: none;
    color: var(--color-text);
    transition: var(--transition);
    height: 100%;
    position: relative;
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.07);
}

.portfolio-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--color-primary);
    transform: scaleX(0);
    transition: transform 0.4s ease;
}

.portfolio-card:hover {
    border-color: var(--color-card-hover-border);
    transform: translateY(-5px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.1);
    color: var(--color-text);
}

.portfolio-card:hover::before {
    transform: scaleX(1);
}

.portfolio-card-icon {
    width: 72px;
    height: 72px;
    border-radius: 18px;
    background: rgba(37, 99, 235, 0.08);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: var(--color-primary);
    margin-bottom: 1.5rem;
    transition: var(--transition);
}

.portfolio-card:hover .portfolio-card-icon {
    background: var(--color-primary);
    color: #fff;
    transform: scale(1.1);
}

.portfolio-card-title {
    font-weight: 700;
    font-size: 1.15rem;
    margin-bottom: 0.75rem;
    color: var(--color-text-heading);
}

.portfolio-card-desc {
    color: var(--color-text-muted);
    font-size: 0.9rem;
    line-height: 1.6;
    margin-bottom: 1.5rem;
    flex-grow: 1;
}

.portfolio-card-link {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--color-primary);
    transition: var(--transition);
}

.portfolio-card:hover .portfolio-card-link {
    gap: 0.7rem;
}

.portfolio-card-link i {
    transition: transform 0.3s ease;
}

.portfolio-card:hover .portfolio-card-link i {
    transform: translateX(3px);
}

/* ===== REFERENCES ===== */
.references {
    background: var(--color-bg-alt);
}

.reference-item {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1.5rem 1rem;
    background: var(--color-card);
    border: 1px solid var(--color-card-border);
    border-radius: var(--card-radius);
    height: 100%;
    min-height: 100px;
    transition: var(--transition);
    text-decoration: none;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.07);
}

a.reference-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.1);
    border-color: var(--color-card-hover-border);
}

.reference-logo {
    max-height: 55px;
    max-width: 100%;
    object-fit: contain;
    transition: var(--transition);
}

.reference-item:hover .reference-logo {
    transform: scale(1.05);
}

.reference-name {
    font-weight: 600;
    font-size: 0.85rem;
    color: var(--color-text);
    text-align: center;
}

a.reference-item:hover .reference-name {
    color: var(--color-primary);
}

/* ===== WHY ME ===== */
.why-me {
    background: var(--color-bg);
}

/* ===== PROCESS ===== */
.process {
    background: var(--color-bg-alt);
}

.process-step {
    text-align: center;
    padding: var(--card-padding);
    background: var(--color-card);
    border: 1px solid var(--color-card-border);
    border-radius: var(--card-radius);
    height: 100%;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.07);
}

.process-step::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--color-primary);
    transform: scaleX(0);
    transition: transform 0.4s ease;
}

.process-step:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.1);
    border-color: var(--color-card-hover-border);
}

.process-step:hover::before {
    transform: scaleX(1);
}

.step-number {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: rgba(37, 99, 235, 0.08);
    border: 2px solid var(--color-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.25rem;
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--color-primary);
}

.process-step h5 {
    font-weight: 700;
    margin-bottom: 0.75rem;
    color: var(--color-text-heading);
}

.process-step p {
    color: var(--color-text-muted);
    font-size: 0.95rem;
    margin-bottom: 0;
}

/* ===== CONTACT ===== */
.contact {
    background: var(--color-bg-alt);
}

.contact-social-row {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
}

.contact-social-link {
    display: inline-flex;
    align-items: center;
    gap: 0.6rem;
    padding: 0.75rem 1.75rem;
    border: 1px solid var(--color-card-border);
    border-radius: 50px;
    background: var(--color-card);
    color: var(--color-text);
    font-weight: 500;
    font-size: 0.95rem;
    text-decoration: none;
    transition: var(--transition);
    box-shadow: 0 2px 8px rgba(0,0,0,0.06);
}

.contact-social-link:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
    transform: translateY(-2px);
    box-shadow: 0 4px 16px rgba(37,99,235,0.12);
}

.contact-social-link i {
    font-size: 1.1rem;
}

.social-links a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 8px;
    background: rgba(37, 99, 235, 0.08);
    color: var(--color-primary);
    font-size: 1.1rem;
    margin-right: 0.5rem;
    transition: var(--transition);
    text-decoration: none;
}

.social-links a:hover {
    background: var(--color-primary);
    color: #fff;
    transform: translateY(-2px);
}

/* ===== FOOTER ===== */
footer {
    background: var(--color-text-heading);
}

.footer-heading {
    font-weight: 700;
    font-size: 1rem;
    color: #f1f5f9;
    margin-bottom: 0.75rem;
}

.footer-text {
    color: #94a3b8;
    font-size: 0.88rem;
    line-height: 1.6;
}

.footer-divider {
    border-color: rgba(255, 255, 255, 0.1);
    margin: 1.5rem 0;
}

footer p {
    color: #94a3b8;
    font-size: 0.9rem;
}

/* ===== PROJECT DETAIL ===== */
.imgClick {
    cursor: pointer;
    transition: var(--transition);
    border-radius: 8px;
}

.imgClick:hover {
    transform: scale(1.02);
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.15);
}

.modal-dialog {
    max-width: max-content !important;
}

.modal-body {
    display: flex !important;
}

.modal-body img {
    object-fit: contain !important;
}

/* ===== ALL PROJECTS PAGE ===== */
.filter-btn {
    background: var(--color-card);
    border: 1px solid var(--color-card-border);
    border-radius: 50px;
    padding: 0.5rem 1.5rem;
    font-weight: 500;
    font-size: 0.9rem;
    color: var(--color-text);
    cursor: pointer;
    transition: var(--transition);
    margin: 0.25rem;
}

.filter-btn:hover,
.filter-btn.active {
    background: var(--color-primary);
    border-color: var(--color-primary);
    color: #fff;
}

.all-project-card {
    display: flex;
    gap: 1.25rem;
    background: var(--color-card);
    border: 1px solid var(--color-card-border);
    border-radius: var(--card-radius);
    padding: 1.5rem;
    text-decoration: none;
    color: var(--color-text);
    transition: var(--transition);
    height: 100%;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.07);
}

.all-project-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.1);
    border-color: var(--color-card-hover-border);
    color: var(--color-text);
}

.all-project-card-icon {
    flex-shrink: 0;
    width: var(--icon-size);
    height: var(--icon-size);
    border-radius: var(--icon-radius);
    background: rgba(37, 99, 235, 0.08);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: var(--color-primary);
    transition: var(--transition);
}

.all-project-card:hover .all-project-card-icon {
    background: var(--color-primary);
    color: #fff;
}

.all-project-card-body {
    flex: 1;
    display: flex;
    flex-direction: column;
}

.all-project-card-title {
    font-weight: 700;
    font-size: 1.05rem;
    margin-bottom: 0.4rem;
    color: var(--color-text-heading);
}

.all-project-card-desc {
    color: var(--color-text-muted);
    font-size: 0.88rem;
    line-height: 1.55;
    margin-bottom: 0.75rem;
    flex-grow: 1;
}

.all-project-card-meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.5rem;
}

.all-project-card-cat {
    font-size: 0.78rem;
    font-weight: 600;
    color: var(--color-primary);
    background: rgba(37, 99, 235, 0.08);
    padding: 3px 10px;
    border-radius: 20px;
}

.all-project-card-link {
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--color-primary);
    display: flex;
    align-items: center;
    gap: 0.3rem;
    transition: var(--transition);
}

.all-project-card:hover .all-project-card-link {
    gap: 0.6rem;
}

.all-project-card-link i {
    transition: transform 0.3s ease;
}

.all-project-card:hover .all-project-card-link i {
    transform: translateX(3px);
}

/* ===== ANIMATIONS ===== */
.fade-in {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
    .hero {
        min-height: auto;
        padding: 120px 0 4rem;
    }

    .hero h1 {
        font-size: 2.25rem;
    }

    .hero-tag {
        font-size: 0.8rem;
        white-space: normal;
        text-align: center;
    }

    section {
        padding: 3.5rem 0;
    }

    .section-title {
        font-size: 1.75rem;
    }
}

@media (max-width: 576px) {
    .hero h1 {
        font-size: 1.85rem;
    }

    .hero-buttons .btn {
        width: 100%;
        margin-bottom: 0.5rem;
    }
}