/* =========================================
   UI COMPONENTS — Buttons, Tags, Cards
   ========================================= */

/* --- Buttons --- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 18px 36px;
    font-size: var(--text-base);
    font-weight: var(--weight-semibold);
    border-radius: var(--radius-pill);
    transition: var(--transition-smooth);
    position: relative;
    overflow: hidden;
    z-index: 1;
    text-align: center;
}

.btn-primary {
    background-color: var(--color-accent);
    color: var(--color-bg-primary);
}

.btn-primary:hover {
    transform: translateY(-4px);
    background-color: var(--color-accent-hover);
    box-shadow: 0 10px 30px rgba(255, 0, 0, 0.3);
}

.btn-outline {
    background: transparent;
    color: var(--color-text-primary);
    border: 1px solid var(--color-border-light);
    backdrop-filter: blur(10px);
}

.btn-outline:hover {
    background: rgba(255, 255, 255, 0.05);
    border-color: rgba(255, 255, 255, 0.4);
    transform: translateY(-4px);
}

/* --- Tags --- */
.tag {
    display: inline-block;
    padding: 6px 14px;
    border-radius: var(--radius-pill);
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    font-size: var(--text-xs);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-text-primary);
    backdrop-filter: blur(4px);
    font-family: var(--font-mono);
}

/* --- Beam Card (Tools) --- */
.card-beam {
    background: var(--color-bg-secondary);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    position: relative;
    overflow: hidden;
    z-index: 1;
    transition: var(--transition-smooth);
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.card-beam::after {
    content: '';
    position: absolute;
    inset: 1px;
    background: var(--color-bg-secondary);
    border-radius: calc(var(--radius-lg) - 1px);
    z-index: -1;
}

.card-beam::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: conic-gradient(from 0deg, transparent 0 340deg, var(--color-violet) 360deg);
    animation: rotateBeam 4s linear infinite;
    z-index: -2;
    opacity: 0;
    transition: opacity 0.5s ease;
}

.card-beam:hover::before {
    opacity: 1;
}

.card-beam:hover {
    transform: translateY(-8px);
}

/* --- Project Cards (Portfolio Gallery) --- */
.project-card {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
    padding: var(--space-xs);
    border-radius: var(--radius-lg);
    background: transparent;
    border: 1px solid transparent;
    transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.project-card:hover {
    background: rgba(255, 255, 255, 0.02);
    border-color: rgba(255, 255, 255, 0.05);
}

.project-card .card-image {
    width: 100%;
    aspect-ratio: 4/5;
    background: #111;
    border-radius: calc(var(--radius-lg) - 4px);
    border: 1px solid rgba(255, 255, 255, 0.05);
    overflow: hidden;
    position: relative;
}

.project-card img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    filter: grayscale(80%) brightness(0.7);
    transition: transform 0.8s cubic-bezier(0.16, 1, 0.3, 1), filter 0.5s ease;
}

.project-card:hover img {
    transform: scale(1.05);
    filter: grayscale(0%) brightness(1);
}

.project-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(255, 0, 0, 0.4), transparent);
    opacity: 0;
    transition: opacity 0.5s ease;
    mix-blend-mode: multiply;
    z-index: 1;
}

.project-card:hover .project-overlay {
    opacity: 1;
}

.project-card .btn-icon {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) scale(0.8);
    width: 64px;
    height: 64px;
    border-radius: 50%;
    background: var(--color-accent);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: all 0.5s cubic-bezier(0.16, 1, 0.3, 1);
    box-shadow: 0 10px 30px rgba(255, 0, 0, 0.5);
    z-index: 2;
}

.project-card:hover .btn-icon {
    transform: translate(-50%, -50%) scale(1);
    opacity: 1;
}

/* --- Portfolio CTA (4th card) --- */
.project-4-cta {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    padding: var(--space-xl);
    border: 1px dashed rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-lg);
    aspect-ratio: 4/5;
    background: repeating-linear-gradient(45deg,
            transparent,
            transparent 10px,
            rgba(255, 255, 255, 0.01) 10px,
            rgba(255, 255, 255, 0.01) 20px);
    transition: all 0.4s ease;
    position: relative;
    overflow: hidden;
    text-decoration: none;
    color: inherit;
}

.project-4-cta:hover {
    border-color: var(--color-accent);
    background-color: rgba(255, 0, 0, 0.02);
    box-shadow: inset 0 0 50px rgba(255, 0, 0, 0.05);
}