/* =============================================
   miris-project.net - Ethereal Project Sanctuary
   ============================================= */

/* --- Reset & Base --- */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --twilight-blue: #0A1020;
    --warm-cream: #E8D8C8;
    --mist-grey: #C0B8B0;
    --chrome-lilac: #A090C0;
    --chrome-rose: #C090A0;
    --firefly-gold: #E0C060;
    --floral-green: #60A070;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Nunito', sans-serif;
    font-weight: 400;
    font-size: clamp(0.95rem, 1.2vw, 1.1rem);
    line-height: 1.8;
    color: var(--mist-grey);
    background-color: var(--twilight-blue);
    overflow-x: hidden;
    position: relative;
}

/* --- Firefly Particles --- */
.fireflies-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 1;
    overflow: hidden;
}

.firefly {
    position: absolute;
    width: 4px;
    height: 4px;
    background: var(--firefly-gold);
    border-radius: 50%;
    opacity: 0;
    box-shadow: 0 0 6px 2px rgba(224, 192, 96, 0.3);
    animation: fireflyDrift linear infinite, fireflyGlow ease-in-out infinite;
}

@keyframes fireflyDrift {
    0% {
        transform: translate(0, 0);
    }
    25% {
        transform: translate(var(--drift-x1), var(--drift-y1));
    }
    50% {
        transform: translate(var(--drift-x2), var(--drift-y2));
    }
    75% {
        transform: translate(var(--drift-x3), var(--drift-y3));
    }
    100% {
        transform: translate(0, 0);
    }
}

@keyframes fireflyGlow {
    0%, 100% {
        opacity: 0;
    }
    20% {
        opacity: 0.3;
    }
    50% {
        opacity: 0.15;
    }
    80% {
        opacity: 0.35;
    }
}

/* --- Mist Layers --- */
.mist-layer {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 0;
    opacity: 0;
    animation: mistFadeIn 3s ease-out forwards;
}

.mist-far {
    background: radial-gradient(ellipse at 30% 40%, rgba(160, 144, 192, 0.08) 0%, transparent 60%),
                radial-gradient(ellipse at 70% 60%, rgba(192, 144, 160, 0.06) 0%, transparent 55%),
                radial-gradient(ellipse at 50% 80%, rgba(96, 160, 112, 0.04) 0%, transparent 50%);
    animation-delay: 0.5s;
    z-index: 0;
}

.mist-mid {
    background: radial-gradient(ellipse at 60% 30%, rgba(160, 144, 192, 0.12) 0%, transparent 50%),
                radial-gradient(ellipse at 20% 70%, rgba(224, 192, 96, 0.06) 0%, transparent 45%),
                radial-gradient(ellipse at 80% 50%, rgba(192, 144, 160, 0.08) 0%, transparent 55%);
    animation-delay: 1.2s;
    z-index: 0;
}

@keyframes mistFadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

/* --- Navigation --- */
.nav-layer {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 100;
    padding: 1rem 2rem;
    background: linear-gradient(to bottom, rgba(10, 16, 32, 0.9) 0%, rgba(10, 16, 32, 0) 100%);
    opacity: 0;
    animation: navFadeIn 2s ease-out 2s forwards;
}

@keyframes navFadeIn {
    from { opacity: 0; transform: translateY(-10px); }
    to { opacity: 1; transform: translateY(0); }
}

.nav-inner {
    max-width: 1100px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-logo {
    font-family: 'Bitter', serif;
    font-weight: 700;
    font-size: 1.3rem;
    color: var(--warm-cream);
    text-decoration: none;
    letter-spacing: 0.15em;
    text-shadow: 0 0 20px rgba(224, 192, 96, 0.3);
    transition: text-shadow 0.4s ease;
}

.nav-logo:hover {
    text-shadow: 0 0 30px rgba(224, 192, 96, 0.5);
}

.nav-links {
    display: flex;
    gap: 2rem;
}

.nav-link {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    color: var(--mist-grey);
    text-decoration: none;
    font-size: 0.85rem;
    font-weight: 300;
    letter-spacing: 0.05em;
    transition: color 0.3s ease;
}

.nav-link:hover {
    color: var(--firefly-gold);
}

.nav-icon {
    opacity: 0.6;
    transition: opacity 0.3s ease;
}

.nav-link:hover .nav-icon {
    opacity: 1;
}

/* --- Hero Section --- */
.hero-section {
    position: relative;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    z-index: 2;
    padding: 2rem;
}

.hero-content {
    text-align: center;
    position: relative;
    opacity: 0;
    animation: heroAppear 2.5s ease-out 1.5s forwards;
}

@keyframes heroAppear {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.hero-title {
    font-family: 'Bitter', serif;
    font-weight: 700;
    font-size: clamp(2rem, 4vw, 3.5rem);
    color: var(--warm-cream);
    letter-spacing: 0.2em;
    text-shadow: 0 0 40px rgba(224, 192, 96, 0.2), 0 0 80px rgba(160, 144, 192, 0.1);
    margin-bottom: 0.8rem;
}

.hero-subtitle {
    font-family: 'Nunito', sans-serif;
    font-weight: 300;
    font-size: clamp(0.9rem, 1.5vw, 1.2rem);
    color: var(--chrome-lilac);
    letter-spacing: 0.1em;
    opacity: 0.8;
}

.hero-floral {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    opacity: 0;
    animation: floralAppear 3s ease-out 2.5s forwards;
}

.hero-floral-left {
    right: calc(100% + 2rem);
}

.hero-floral-right {
    left: calc(100% + 2rem);
    transform: translateY(-50%) scaleX(-1);
}

@keyframes floralAppear {
    from { opacity: 0; }
    to { opacity: 1; }
}

.hero-scroll-hint {
    position: absolute;
    bottom: 3rem;
    left: 50%;
    transform: translateX(-50%);
    opacity: 0;
    animation: scrollHintAppear 2s ease-out 3.5s forwards, scrollHintFloat 3s ease-in-out 5s infinite;
}

@keyframes scrollHintAppear {
    from { opacity: 0; }
    to { opacity: 0.5; }
}

@keyframes scrollHintFloat {
    0%, 100% { transform: translateX(-50%) translateY(0); }
    50% { transform: translateX(-50%) translateY(8px); }
}

/* --- Section Shared Styles --- */
.section-container {
    max-width: 1000px;
    margin: 0 auto;
    padding: 0 2rem;
}

.section-title {
    font-family: 'Bitter', serif;
    font-weight: 700;
    font-size: clamp(1.6rem, 3vw, 2.4rem);
    color: var(--warm-cream);
    margin-bottom: 2.5rem;
    text-align: center;
    letter-spacing: 0.08em;
    text-shadow: 0 0 30px rgba(224, 192, 96, 0.15);
}

/* --- Categories Section --- */
.categories-section {
    position: relative;
    z-index: 2;
    padding: 6rem 0 4rem;
}

.categories-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
}

.category-card {
    background: rgba(160, 144, 192, 0.06);
    border: 1px solid rgba(160, 144, 192, 0.1);
    border-radius: 12px;
    padding: 2rem 1.2rem;
    text-align: center;
    cursor: pointer;
    transition: background 0.4s ease, border-color 0.4s ease, transform 0.4s ease;
}

.category-card:hover {
    background: rgba(160, 144, 192, 0.12);
    border-color: rgba(160, 144, 192, 0.25);
    transform: translateY(-4px);
}

.category-card.active {
    background: rgba(224, 192, 96, 0.08);
    border-color: rgba(224, 192, 96, 0.3);
}

.category-icon {
    margin-bottom: 1rem;
    display: flex;
    justify-content: center;
}

.category-icon svg {
    transition: transform 0.4s ease;
}

.category-card:hover .category-icon svg {
    transform: scale(1.1);
}

.category-name {
    font-family: 'Bitter', serif;
    font-weight: 700;
    font-size: 1.1rem;
    color: var(--warm-cream);
    margin-bottom: 0.5rem;
    letter-spacing: 0.05em;
}

.category-desc {
    font-size: 0.85rem;
    font-weight: 300;
    color: var(--mist-grey);
    opacity: 0.7;
    line-height: 1.6;
}

/* --- Projects Section --- */
.projects-section {
    position: relative;
    z-index: 2;
    padding: 4rem 0 6rem;
}

.projects-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.project-card {
    background: rgba(160, 144, 192, 0.05);
    border: 1px solid rgba(160, 144, 192, 0.08);
    border-radius: 12px;
    overflow: hidden;
    transition: background 0.4s ease, border-color 0.4s ease;
}

.project-card:hover {
    background: rgba(160, 144, 192, 0.09);
    border-color: rgba(160, 144, 192, 0.18);
}

.project-card[data-expanded="true"] {
    border-color: rgba(224, 192, 96, 0.2);
}

.project-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1.2rem 1.5rem;
    cursor: pointer;
}

.project-floral-accent {
    flex-shrink: 0;
}

.project-title-group {
    flex: 1;
}

.project-name {
    font-family: 'Bitter', serif;
    font-weight: 700;
    font-size: 1.2rem;
    color: var(--warm-cream);
    letter-spacing: 0.04em;
}

.project-tag {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 300;
    color: var(--chrome-lilac);
    letter-spacing: 0.08em;
    margin-top: 0.15rem;
}

.project-toggle {
    background: none;
    border: none;
    color: var(--mist-grey);
    cursor: pointer;
    padding: 0.5rem;
    transition: color 0.3s ease, transform 0.3s ease;
    flex-shrink: 0;
}

.project-toggle:hover {
    color: var(--firefly-gold);
}

.project-card[data-expanded="true"] .project-toggle {
    transform: rotate(180deg);
    color: var(--firefly-gold);
}

.project-details {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.5s cubic-bezier(0.4, 0, 0.2, 1), padding 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    padding: 0 1.5rem;
}

.project-card[data-expanded="true"] .project-details {
    max-height: 300px;
    padding: 0 1.5rem 1.5rem;
}

.project-description {
    font-weight: 300;
    line-height: 1.8;
    color: var(--mist-grey);
    margin-bottom: 1rem;
    opacity: 0.85;
}

.project-meta {
    display: flex;
    gap: 1.5rem;
    flex-wrap: wrap;
}

.meta-item {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    font-size: 0.8rem;
    font-weight: 300;
    color: var(--chrome-rose);
    letter-spacing: 0.04em;
}

/* --- About Section --- */
.about-section {
    position: relative;
    z-index: 2;
    padding: 4rem 0 6rem;
}

.about-panel {
    position: relative;
    background: rgba(160, 144, 192, 0.05);
    border: 1px solid rgba(160, 144, 192, 0.1);
    border-radius: 16px;
    padding: 3.5rem 3rem;
    text-align: center;
}

.about-floral-frame {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
}

.floral-corner {
    position: absolute;
}

.floral-top-left {
    top: -8px;
    left: -8px;
}

.floral-top-right {
    top: -8px;
    right: -8px;
}

.floral-bottom-left {
    bottom: -8px;
    left: -8px;
}

.floral-bottom-right {
    bottom: -8px;
    right: -8px;
}

.about-text {
    font-weight: 300;
    line-height: 1.9;
    color: var(--mist-grey);
    max-width: 650px;
    margin: 0 auto 1.2rem;
    opacity: 0.85;
}

.about-contact {
    margin-top: 2rem;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.6rem;
}

.contact-label {
    font-weight: 300;
    font-size: 0.9rem;
    color: var(--mist-grey);
    opacity: 0.6;
}

.contact-link {
    color: var(--firefly-gold);
    text-decoration: none;
    font-weight: 400;
    font-size: 0.9rem;
    letter-spacing: 0.03em;
    transition: color 0.3s ease, text-shadow 0.3s ease;
}

.contact-link:hover {
    text-shadow: 0 0 15px rgba(224, 192, 96, 0.3);
}

/* --- Footer --- */
.site-footer {
    position: relative;
    z-index: 2;
    padding: 2rem 0 3rem;
    text-align: center;
}

.footer-inner {
    max-width: 1000px;
    margin: 0 auto;
    padding: 0 2rem;
}

.footer-floral {
    margin-bottom: 1rem;
    display: flex;
    justify-content: center;
}

.footer-text {
    font-size: 0.8rem;
    font-weight: 300;
    color: var(--mist-grey);
    opacity: 0.4;
    letter-spacing: 0.08em;
}

/* --- Scroll Reveal Animation --- */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}

.reveal.visible {
    opacity: 1;
    transform: translateY(0);
}

/* --- Responsive --- */
@media (max-width: 768px) {
    .categories-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1rem;
    }

    .nav-links {
        gap: 1rem;
    }

    .nav-link span {
        display: none;
    }

    .hero-floral {
        display: none;
    }

    .about-panel {
        padding: 2.5rem 1.5rem;
    }

    .project-header {
        padding: 1rem 1.2rem;
    }

    .project-card[data-expanded="true"] .project-details {
        padding: 0 1.2rem 1.2rem;
    }
}

@media (max-width: 480px) {
    .categories-grid {
        grid-template-columns: 1fr 1fr;
    }

    .category-card {
        padding: 1.5rem 1rem;
    }

    .about-contact {
        flex-direction: column;
        gap: 0.3rem;
    }

    .project-meta {
        flex-direction: column;
        gap: 0.5rem;
    }
}