/* ===== KW-Dev Portfolio — Vermillion & Dark Gray Theme ===== */

:root {
    --vermillion: #e74c2e;
    --vermillion-dark: #c0392b;
    --vermillion-glow: rgba(231, 76, 46, 0.3);
    --dark: #1a1a2e;
    --darker: #12121f;
    --card-bg: #2e2e4a;
    --text: #e0e0e0;
}

/* ===== Base ===== */
body {
    font-family: 'Inter', sans-serif;
    background-color: var(--dark);
    color: var(--text);
    overflow-x: hidden;
}

.bg-darker { background-color: var(--darker); }
.text-vermillion { color: var(--vermillion) !important; }
.fw-600 { font-weight: 600; }
.fw-900 { font-weight: 900; }

/* ===== Navbar ===== */
#mainNav {
    background: rgba(18, 18, 31, 0.9);
    backdrop-filter: blur(12px);
    transition: background 0.3s;
}
#mainNav .nav-link {
    font-weight: 600;
    letter-spacing: 0.5px;
    transition: color 0.3s;
}
#mainNav .nav-link:hover,
#mainNav .nav-link.active {
    color: var(--vermillion) !important;
}

/* ===== Hero ===== */
.hero-section {
    min-height: 100vh;
    background: linear-gradient(135deg, var(--darker) 0%, var(--dark) 50%, #2a1a1a 100%);
    position: relative;
}
.hero-overlay {
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at 50% 50%, var(--vermillion-glow) 0%, transparent 60%);
    pointer-events: none;
}

/* ===== Section spacing & titles ===== */
.section-padding { padding: 100px 0; }
.section-title {
    font-size: 2.5rem;
    font-weight: 900;
    text-align: center;
    position: relative;
    padding-bottom: 16px;
}
.section-title::after {
    content: '';
    display: block;
    width: 60px;
    height: 4px;
    background: var(--vermillion);
    margin: 12px auto 0;
    border-radius: 2px;
}
.subsection-title {
    font-size: 1.3rem;
    font-weight: 700;
    margin-bottom: 16px;
}

/* ===== About photo ===== */
.about-photo-wrapper { width: 250px; height: 250px; }
.border-vermillion { border: 3px solid var(--vermillion) !important; }

/* ===== Cards (shared) ===== */
.service-card,
.client-card,
.cert-card,
.cv-card,
.project-card {
    background: var(--card-bg);
    border: 1px solid rgba(255,255,255,0.05);
    transition: transform 0.35s cubic-bezier(.25,.8,.25,1),
                box-shadow 0.35s cubic-bezier(.25,.8,.25,1);
}
.service-card:hover,
.client-card:hover,
.cert-card:hover,
.cv-card:hover,
.project-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 12px 40px var(--vermillion-glow);
}

/* ===== Client cards ===== */
.client-card {
    height: 100px;
    display: flex;
    align-items: center;
    justify-content: center;
}
.client-card img {
    max-height: 60px;
    width: 100%;
    object-fit: contain;
}


.cv-card {
    text-decoration: none;
    color: var(--text);
}
.cv-card:hover { color: var(--vermillion); }

/* ===== Project cards ===== */
.project-img-wrapper {
    position: relative;
    overflow: hidden;
    height: 200px;
}
.project-img-wrapper img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s;
}
.project-card:hover .project-img-wrapper img {
    transform: scale(1.08);
}
.project-overlay {
    position: absolute;
    top: 12px;
    right: 12px;
}
.tech-logos { display: flex; gap: 8px; flex-wrap: wrap; }

/* ===== Gallery image (project detail) ===== */
.project-gallery-img {
    height: 220px;
    object-fit: cover;
}

/* ===== Tech wordmark cards (main page) ===== */
.tech-wordmark-card {
    background: var(--card-bg);
    border: 1px solid rgba(255,255,255,0.1);
    transition: transform 0.3s, box-shadow 0.3s;
}
.tech-wordmark-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px var(--vermillion-glow);
}

/* ===== Tech badge (project detail) ===== */
.tech-badge {
    background: var(--card-bg);
    border: 1px solid rgba(255,255,255,0.08);
}

/* ===== Portfolio filter pills ===== */
#portfolioTabs .nav-link {
    color: var(--text);
    border-radius: 50px;
    padding: 8px 24px;
    font-weight: 600;
    transition: all 0.3s;
}
#portfolioTabs .nav-link.active,
#portfolioTabs .nav-link:hover {
    background: var(--vermillion);
    color: #fff;
}

/* ===== Buttons ===== */
.btn-vermillion {
    background: var(--vermillion);
    color: #fff;
    border: none;
    font-weight: 600;
    transition: background 0.3s, box-shadow 0.3s;
}
.btn-vermillion:hover {
    background: var(--vermillion-dark);
    box-shadow: 0 4px 20px var(--vermillion-glow);
    color: #fff;
}
.bg-vermillion { background-color: var(--vermillion) !important; }

.btn-outline-vermillion {
    color: var(--vermillion);
    border: 2px solid var(--vermillion);
    font-weight: 600;
    transition: all 0.3s;
}
.btn-outline-vermillion:hover {
    background: var(--vermillion);
    color: #fff;
}

/* ===== Links ===== */
.text-vermillion-link {
    color: var(--vermillion);
    text-decoration: none;
    transition: color 0.3s;
}
.text-vermillion-link:hover {
    color: var(--vermillion-dark);
    text-decoration: underline;
}
.social-icon {
    color: var(--text);
    transition: color 0.3s, transform 0.3s;
}
.social-icon:hover {
    color: var(--vermillion);
    transform: scale(1.2);
}

/* ===== Contact form ===== */
.contact-form .form-control {
    background: var(--card-bg);
    border: 1px solid rgba(255,255,255,0.08);
    color: var(--text);
}
.contact-form .form-control:focus {
    border-color: var(--vermillion);
    box-shadow: 0 0 0 0.2rem var(--vermillion-glow);
    background: var(--card-bg);
    color: var(--text);
}

/* ===== Scroll animations ===== */
.animate-on-scroll {
    opacity: 0;
    transition: opacity 0.7s ease, transform 0.7s ease;
}
.animate-on-scroll.fade-up { transform: translateY(40px); }
.animate-on-scroll.visible {
    opacity: 1;
    transform: translateY(0);
}
.delay-1 { transition-delay: 0.15s; }
.delay-2 { transition-delay: 0.3s; }

/* ===== Responsive ===== */
@media (max-width: 768px) {
    .section-title { font-size: 2rem; }
    .hero-section h1 { font-size: 2.8rem; }
}