/* ===== RESET & BASE ===== */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

:root {
    --bg:           #0a0a0a;
    --bg-card:      #111111;
    --bg-card-hover:#161616;
    --border:       #222222;
    --border-hover: #333333;
    --accent:       #6ee7f7;
    --accent-dim:   rgba(110, 231, 247, 0.12);
    --text-primary: #f0f0f0;
    --text-secondary:#888888;
    --text-muted:   #555555;
    --radius:       10px;
    --transition:   0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

html, body {
    font-family: 'Inter', 'Helvetica Neue', Arial, sans-serif;
    background-color: var(--bg);
    color: var(--text-primary);
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
}

a {
    color: inherit;
    text-decoration: none;
}

/* ===== LAYOUT ===== */
.site-wrapper {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

.site-main {
    flex: 1;
}

/* ===== HEADER ===== */
.site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(10, 10, 10, 0.85);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border);
}

.header-inner {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1rem 2rem;
}

.logo {
    font-size: 1.25rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    transition: opacity var(--transition);
}

.logo:hover {
    opacity: 0.8;
}

.logo-primary {
    color: var(--text-primary);
}

.logo-accent {
    color: var(--accent);
}

/* ===== HERO ===== */
.hero {
    padding: 6rem 2rem 4rem;
    max-width: 1200px;
    margin: 0 auto;
    animation: fadeUp 0.7s ease both;
}

.hero-inner {
    max-width: 640px;
}

.hero-eyebrow {
    font-size: 0.8rem;
    font-weight: 500;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--accent);
    margin-bottom: 1rem;
}

.hero-title {
    font-size: clamp(2.5rem, 6vw, 4.5rem);
    font-weight: 700;
    letter-spacing: -0.03em;
    line-height: 1.05;
    color: var(--text-primary);
    margin-bottom: 1.25rem;
}

.hero-subtitle {
    font-size: 1.1rem;
    line-height: 1.7;
    color: var(--text-secondary);
}

/* ===== PROJECTS SECTION ===== */
.projects-section {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem 2rem 6rem;
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 1.5rem;
}

/* ===== PROJECT CARD ===== */
.project-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
    cursor: default;
    opacity: 0;
    transform: translateY(20px);
    transition:
        opacity 0.5s ease,
        transform 0.5s ease,
        border-color var(--transition),
        background var(--transition),
        box-shadow var(--transition);
}

.project-card.visible {
    opacity: 1;
    transform: translateY(0);
}

.project-card:hover {
    border-color: var(--border-hover);
    background: var(--bg-card-hover);
    box-shadow: 0 0 0 1px var(--border-hover), 0 8px 32px rgba(0, 0, 0, 0.5);
    transform: translateY(-4px);
}

/* Card image */
.card-image {
    position: relative;
    width: 100%;
    aspect-ratio: 16 / 9;
    overflow: hidden;
    background: #111;
}

.card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease, filter 0.3s ease;
    filter: brightness(0.85);
}

.project-card:hover .card-image img {
    transform: scale(1.03);
    filter: brightness(1);
}

.card-image-overlay {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0, 0, 0, 0.55);
    opacity: 0;
    transition: opacity var(--transition);
}

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

.visit-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.55rem 1.2rem;
    border-radius: 999px;
    border: 1px solid var(--accent);
    color: var(--accent);
    font-size: 0.85rem;
    font-weight: 500;
    letter-spacing: 0.02em;
    transition: background var(--transition), color var(--transition);
    background: transparent;
}

.visit-btn:hover {
    background: var(--accent);
    color: #000;
}

/* Card body */
.card-body {
    padding: 1.25rem 1.25rem 1.5rem;
}

.card-title {
    font-size: 1rem;
    font-weight: 600;
    letter-spacing: -0.01em;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.card-description {
    font-size: 0.875rem;
    line-height: 1.6;
    color: var(--text-secondary);
    margin-bottom: 1rem;
}

.card-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem;
}

.tag {
    font-size: 0.7rem;
    font-weight: 500;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    padding: 0.25rem 0.6rem;
    border-radius: 999px;
    background: var(--accent-dim);
    color: var(--accent);
    border: 1px solid rgba(110, 231, 247, 0.2);
}

/* ===== LOADING STATE ===== */
.loading-state {
    grid-column: 1 / -1;
    text-align: center;
    padding: 4rem;
    color: var(--text-muted);
    font-size: 0.9rem;
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

/* ===== FOOTER ===== */
.site-footer {
    border-top: 1px solid var(--border);
    padding: 1.5rem 2rem;
    text-align: center;
}

.site-footer p {
    font-size: 0.8rem;
    color: var(--text-muted);
    letter-spacing: 0.02em;
}

/* ===== ANIMATIONS ===== */
@keyframes fadeUp {
    from {
        opacity: 0;
        transform: translateY(24px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ===== BLAZOR ERROR UI ===== */
#blazor-error-ui {
    background: #1a0000;
    border-top: 1px solid #440000;
    bottom: 0;
    box-sizing: border-box;
    display: none;
    left: 0;
    padding: 0.75rem 1.5rem;
    position: fixed;
    width: 100%;
    z-index: 1000;
    color: #ff6b6b;
    font-size: 0.85rem;
}

#blazor-error-ui .dismiss {
    cursor: pointer;
    position: absolute;
    right: 1rem;
    top: 0.6rem;
    color: var(--text-muted);
}

/* ===== LOADING PROGRESS ===== */
.loading-progress {
    position: absolute;
    display: block;
    width: 6rem;
    height: 6rem;
    inset: 20vh 0 auto 0;
    margin: 0 auto;
}

.loading-progress circle {
    fill: none;
    stroke: var(--border);
    stroke-width: 0.5rem;
    transform-origin: 50% 50%;
    transform: rotate(-90deg);
}

.loading-progress circle:last-child {
    stroke: var(--accent);
    stroke-dasharray: calc(3.141 * var(--blazor-load-percentage, 0%) * 0.8), 500%;
    transition: stroke-dasharray 0.05s ease-in-out;
}

.loading-progress-text {
    position: absolute;
    text-align: center;
    font-weight: 600;
    font-size: 0.75rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--text-muted);
    inset: calc(20vh + 4rem) 0 auto 0;
}

.loading-progress-text::after {
    content: var(--blazor-load-percentage-text, "Loading");
}

/* ===== NAVIGATION ===== */
.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.site-nav {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.site-nav a {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-secondary);
    letter-spacing: 0.01em;
    transition: color var(--transition);
    position: relative;
}

.site-nav a::after {
    content: '';
    position: absolute;
    bottom: -3px;
    left: 0;
    width: 0;
    height: 1px;
    background: var(--accent);
    transition: width var(--transition);
}

.site-nav a:hover,
.site-nav a.active {
    color: var(--text-primary);
}

.site-nav a:hover::after,
.site-nav a.active::after {
    width: 100%;
}

/* ===== CONTACT PAGE ===== */
.contact-hero {
    padding: 6rem 2rem 3rem;
    max-width: 1200px;
    margin: 0 auto;
    animation: fadeUp 0.7s ease both;
}

.contact-hero-inner {
    max-width: 560px;
}

.contact-section {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem 6rem;
}

.contact-card {
    max-width: 600px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 2.5rem;
    animation: fadeUp 0.7s ease 0.1s both;
}

/* Form groups */
.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
    margin-bottom: 1.5rem;
}

.form-group label {
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--text-secondary);
}

.form-group input,
.form-group textarea {
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 6px;
    color: var(--text-primary);
    font-family: inherit;
    font-size: 0.9rem;
    padding: 0.75rem 1rem;
    transition: border-color var(--transition), box-shadow var(--transition);
    resize: vertical;
    outline: none;
    width: 100%;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--text-muted);
}

.form-group input:focus,
.form-group textarea:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(110, 231, 247, 0.08);
}

.form-group input:disabled,
.form-group textarea:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.validation-message {
    font-size: 0.78rem;
    color: #f87171;
    margin-top: 0.1rem;
}

.form-error-msg {
    font-size: 0.85rem;
    color: #f87171;
    margin-bottom: 1.25rem;
    padding: 0.75rem 1rem;
    background: rgba(248, 113, 113, 0.08);
    border: 1px solid rgba(248, 113, 113, 0.2);
    border-radius: 6px;
}

/* Buttons */
.btn-primary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    background: var(--accent);
    color: #000;
    border: none;
    border-radius: 6px;
    font-family: inherit;
    font-size: 0.9rem;
    font-weight: 600;
    padding: 0.75rem 1.75rem;
    cursor: pointer;
    transition: opacity var(--transition), transform var(--transition);
    width: 100%;
}

.btn-primary:hover:not(:disabled) {
    opacity: 0.88;
    transform: translateY(-1px);
}

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

.btn-secondary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    color: var(--text-secondary);
    border: 1px solid var(--border);
    border-radius: 6px;
    font-family: inherit;
    font-size: 0.85rem;
    font-weight: 500;
    padding: 0.6rem 1.25rem;
    cursor: pointer;
    transition: border-color var(--transition), color var(--transition);
    margin-top: 1.25rem;
}

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

/* Spinner */
.btn-spinner {
    display: inline-block;
    width: 14px;
    height: 14px;
    border: 2px solid rgba(0, 0, 0, 0.3);
    border-top-color: #000;
    border-radius: 50%;
    animation: spin 0.6s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* Success state */
.form-success {
    text-align: center;
    padding: 1.5rem 0;
    animation: fadeUp 0.5s ease both;
}

.success-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background: rgba(110, 231, 247, 0.1);
    border: 1px solid rgba(110, 231, 247, 0.3);
    color: var(--accent);
    margin-bottom: 1.25rem;
}

.form-success h2 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.form-success p {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

.form-success strong {
    color: var(--text-primary);
}

/* ===== RESPONSIVE ===== */
@media (max-width: 640px) {
    .hero {
        padding: 4rem 1.25rem 2.5rem;
    }

    .projects-section {
        padding: 1.5rem 1.25rem 4rem;
    }

    .projects-grid {
        grid-template-columns: 1fr;
    }

    .header-inner {
        padding: 0.875rem 1.25rem;
    }
}