/* =========================================================
   MAHDI YASSER — PERSONAL SITE v2.0
   Aesthetic: Dark Editorial / Terminal-Luxe
   Fonts: Syne (display) + JetBrains Mono (accent)
   ========================================================= */

/* ---- DESIGN TOKENS ---- */
:root {
    /* Dark theme (default) */
    --bg:           #0c0c0f;
    --bg-card:      #13131a;
    --bg-card-alt:  #1a1a24;
    --accent:       #f0a500;
    --accent-dim:   rgba(240, 165, 0, 0.15);
    --accent-glow:  0 0 18px rgba(240, 165, 0, 0.35);
    --text:         #e8e8f0;
    --text-muted:   #7070a0;
    --border:       rgba(255, 255, 255, 0.07);
    --border-hover: rgba(240, 165, 0, 0.45);
    --shadow:       0 4px 32px rgba(0, 0, 0, 0.7);

    /* Typography */
    --ff-display: 'Syne', sans-serif;
    --ff-mono:    'JetBrains Mono', monospace;

    /* Spacing */
    --gap:    2rem;
    --r:      10px;
    --r-lg:   16px;

    /* Transitions */
    --ease:   cubic-bezier(0.22, 1, 0.36, 1);
}

body.light-theme {
    --bg:           #f0ede8;
    --bg-card:      #faf8f5;
    --bg-card-alt:  #ece9e2;
    --accent:       #c47a00;
    --accent-dim:   rgba(196, 122, 0, 0.12);
    --accent-glow:  0 0 18px rgba(196, 122, 0, 0.25);
    --text:         #1a1a2e;
    --text-muted:   #888870;
    --border:       rgba(0, 0, 0, 0.09);
    --border-hover: rgba(196, 122, 0, 0.5);
    --shadow:       0 4px 32px rgba(0, 0, 0, 0.12);
}

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

html {
    scroll-behavior: smooth;
}

::-webkit-scrollbar { width: 4px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--accent); border-radius: 99px; }

/* ---- BASE ---- */
body {
    font-family: var(--ff-display);
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    overflow-x: hidden;
    transition: background 0.4s var(--ease), color 0.4s var(--ease);
    cursor: none;
}

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

/* ---- CANVAS BACKGROUND ---- */
#bg-canvas {
    position: fixed;
    inset: 0;
    z-index: 0;
    pointer-events: none;
    opacity: 0.35;
}

body.light-theme #bg-canvas {
    opacity: 0.12;
}

/* ---- CUSTOM CURSOR ---- */
#cursor-dot {
    position: fixed;
    width: 6px;
    height: 6px;
    background: var(--accent);
    border-radius: 50%;
    pointer-events: none;
    z-index: 9999;
    transform: translate(-50%, -50%);
    transition: transform 0.05s linear, opacity 0.2s;
}

#cursor-ring {
    position: fixed;
    width: 32px;
    height: 32px;
    border: 1.5px solid var(--accent);
    border-radius: 50%;
    pointer-events: none;
    z-index: 9998;
    transform: translate(-50%, -50%);
    transition: width 0.2s var(--ease), height 0.2s var(--ease), opacity 0.2s,
                border-color 0.2s, transform 0.12s linear;
    opacity: 0.6;
}

#cursor-ring.hovered {
    width: 52px;
    height: 52px;
    opacity: 0.9;
    border-color: var(--accent);
}

@media (hover: none) {
    #cursor-dot, #cursor-ring { display: none; }
    body { cursor: auto; }
}

/* ---- THEME TOGGLE ---- */
#theme-toggle {
    position: fixed;
    top: 1.25rem;
    right: 1.25rem;
    z-index: 1000;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    border: 1.5px solid var(--border-hover);
    background: var(--bg-card);
    color: var(--accent);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
    transition: all 0.3s var(--ease);
    box-shadow: var(--accent-glow);
}
#theme-toggle:hover { transform: rotate(20deg) scale(1.1); }

/* Icon visibility */
.dark-theme  #toggle-icon-dark  { display: none; }
.dark-theme  #toggle-icon-light { display: block; }
.light-theme #toggle-icon-light { display: none; }
.light-theme #toggle-icon-dark  { display: block; }

/* ---- MAIN WRAPPER ---- */
#main-wrapper {
    position: relative;
    z-index: 1;
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 1.5rem 4rem;
    display: flex;
    flex-direction: column;
    gap: 5rem;
}

/* ---- REVEAL ANIMATION ---- */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
}
.reveal.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ---- SECTION LABEL ---- */
.section-label {
    font-family: var(--ff-mono);
    font-size: 0.72rem;
    text-transform: uppercase;
    letter-spacing: 0.18em;
    color: var(--accent);
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
    padding-bottom: 0.6rem;
    border-bottom: 1px solid var(--border);
}

/* ============================================================
   HERO SECTION
   ============================================================ */
.hero-section {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: 6rem 0 3rem;
    position: relative;
}

.hero-inner {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 3.5rem;
    align-items: center;
}

/* --- PFP --- */
.pfp-wrap {
    position: relative;
    width: 210px;
    height: 210px;
    flex-shrink: 0;
}

.pfp-img {
    width: 210px;
    height: 210px;
    border-radius: 50%;
    object-fit: cover;
    border: 3px solid var(--accent);
    display: block;
    position: relative;
    z-index: 2;
    transition: transform 0.4s var(--ease);
}
.pfp-img:hover { transform: scale(1.04); }

.pfp-ring {
    position: absolute;
    inset: -8px;
    border-radius: 50%;
    border: 1.5px solid rgba(240, 165, 0, 0.35);
    animation: spin-ring 8s linear infinite;
    z-index: 1;
}
.pfp-ring-2 {
    inset: -18px;
    border: 1px solid rgba(240, 165, 0, 0.15);
    animation-duration: 14s;
    animation-direction: reverse;
}
@keyframes spin-ring {
    to { transform: rotate(360deg); }
}

.pfp-status {
    position: absolute;
    bottom: 10px;
    right: 6px;
    background: var(--bg-card);
    border: 1.5px solid var(--border);
    border-radius: 99px;
    padding: 3px 10px 3px 6px;
    font-family: var(--ff-mono);
    font-size: 0.7rem;
    color: var(--text-muted);
    display: flex;
    align-items: center;
    gap: 5px;
    z-index: 3;
}
.status-dot {
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: #22dd77;
    box-shadow: 0 0 6px #22dd77;
    animation: pulse-dot 2s ease infinite;
}
@keyframes pulse-dot {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.4; }
}

/* --- Hero Text --- */
.hero-text {
    display: flex;
    flex-direction: column;
    gap: 0.9rem;
}

.hero-label {
    font-family: var(--ff-mono);
    font-size: 0.75rem;
    color: var(--accent);
    letter-spacing: 0.12em;
    text-transform: uppercase;
}

.hero-name {
    font-family: var(--ff-display);
    font-size: clamp(3rem, 7vw, 5.5rem);
    font-weight: 800;
    line-height: 0.95;
    letter-spacing: -0.02em;
    display: flex;
    flex-wrap: wrap;
    gap: 0 0.3em;
}

.name-word {
    display: inline-block;
    opacity: 0;
    transform: translateY(20px);
    animation: word-in 0.6s var(--ease) forwards;
}
.name-word.accent { color: var(--accent); }
.name-word:nth-child(1) { animation-delay: 0.1s; }
.name-word:nth-child(2) { animation-delay: 0.25s; }
@keyframes word-in {
    to { opacity: 1; transform: translateY(0); }
}

.hero-tagline {
    font-family: var(--ff-mono);
    font-size: 1rem;
    color: var(--text-muted);
    min-height: 1.5em;
}

.cursor-blink {
    color: var(--accent);
    animation: blink 1s step-end infinite;
}
@keyframes blink {
    50% { opacity: 0; }
}

.hero-bio {
    font-size: 1rem;
    color: var(--text-muted);
    max-width: 520px;
    line-height: 1.7;
}

/* --- Social Links --- */
.social-links {
    display: flex;
    gap: 0.75rem;
    flex-wrap: wrap;
    margin-top: 0.5rem;
}

.soc-btn {
    position: relative;
    width: 46px;
    height: 46px;
    border-radius: 50%;
    border: 1.5px solid var(--border);
    background: var(--bg-card);
    color: var(--text-muted);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
    transition: all 0.25s var(--ease);
    overflow: visible;
}

.soc-btn::before {
    content: attr(data-tooltip);
    position: absolute;
    bottom: calc(100% + 8px);
    left: 50%;
    transform: translateX(-50%) translateY(4px);
    background: var(--bg-card-alt);
    color: var(--text);
    font-family: var(--ff-mono);
    font-size: 0.65rem;
    padding: 3px 8px;
    border-radius: 4px;
    white-space: nowrap;
    opacity: 0;
    pointer-events: none;
    transition: all 0.2s var(--ease);
    border: 1px solid var(--border);
}

.soc-btn:hover::before {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
}

.soc-btn:hover {
    border-color: var(--accent);
    color: var(--accent);
    background: var(--accent-dim);
    transform: translateY(-3px);
    box-shadow: var(--accent-glow);
}

/* --- Scroll Hint --- */
.scroll-hint {
    text-align: center;
    margin-top: 3rem;
    color: var(--text-muted);
    font-size: 0.9rem;
    animation: bounce 2s ease infinite;
    opacity: 0.5;
}
@keyframes bounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(6px); }
}

/* ============================================================
   QUICK LINKS
   ============================================================ */
.quick-links-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0.9rem;
}

.quick-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.6rem;
    padding: 0.9rem 1rem;
    border-radius: var(--r);
    border: 1.5px solid var(--border);
    background: var(--bg-card);
    color: var(--text-muted);
    font-family: var(--ff-mono);
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    transition: all 0.25s var(--ease);
    text-align: center;
}
.quick-btn i { font-size: 1rem; }
.quick-btn:hover {
    border-color: var(--accent);
    color: var(--accent);
    background: var(--accent-dim);
    transform: translateY(-2px);
}
.quick-btn.featured {
    border-color: var(--accent);
    color: var(--accent);
    border-style: dashed;
}
.quick-btn.featured:hover {
    background: var(--accent);
    color: var(--bg);
    box-shadow: var(--accent-glow);
    border-style: solid;
}

/* ============================================================
   IMAGE CARDS
   ============================================================ */
.cards-grid {
    display: grid;
    gap: 1rem;
}
.three-col { grid-template-columns: repeat(3, 1fr); }
.two-col   { grid-template-columns: repeat(2, 1fr); }

.img-card {
    position: relative;
    border-radius: var(--r-lg);
    overflow: hidden;
    border: 1px solid var(--border);
    background: var(--bg-card);
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    height: 220px;
    transition: all 0.3s var(--ease);
    cursor: pointer;
}
.img-card.tall { height: 280px; }

.img-card-bg {
    position: absolute;
    inset: 0;
    background-size: cover;
    background-position: center;
    opacity: 0.12;
    transition: opacity 0.4s var(--ease), transform 0.5s var(--ease);
}

.img-card:hover .img-card-bg {
    opacity: 0.22;
    transform: scale(1.05);
}

.img-card:hover {
    border-color: var(--border-hover);
    box-shadow: var(--accent-glow);
    transform: translateY(-4px);
}

.img-card-body {
    position: relative;
    z-index: 2;
    display: flex;
    align-items: flex-end;
    gap: 1rem;
    padding: 1.25rem;
    background: linear-gradient(transparent, var(--bg-card) 60%);
}

.img-card-icon {
    width: 40px;
    height: 40px;
    border-radius: 8px;
    background: var(--accent-dim);
    border: 1px solid var(--accent);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent);
    font-size: 1.1rem;
    flex-shrink: 0;
    transition: background 0.3s;
}
.img-card:hover .img-card-icon {
    background: var(--accent);
    color: var(--bg);
}

.img-card-tag {
    font-family: var(--ff-mono);
    font-size: 0.65rem;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    color: var(--accent);
    display: block;
    margin-bottom: 2px;
}

.img-card-info h3 {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--text);
    line-height: 1.2;
}

.img-card-arrow {
    position: absolute;
    top: 1rem;
    right: 1rem;
    z-index: 2;
    color: var(--text-muted);
    font-size: 0.85rem;
    opacity: 0;
    transform: translate(-4px, 4px);
    transition: all 0.25s var(--ease);
}
.img-card:hover .img-card-arrow {
    opacity: 1;
    transform: translate(0, 0);
    color: var(--accent);
}

/* ============================================================
   TIMELINE
   ============================================================ */
.timeline-track {
    display: flex;
    flex-direction: column;
    gap: 0;
    position: relative;
    padding-left: 2.5rem;
}

/* Vertical line */
.timeline-track::before {
    content: '';
    position: absolute;
    left: 11px;
    top: 0;
    bottom: 0;
    width: 1.5px;
    background: linear-gradient(to bottom, var(--accent), transparent);
}

.tl-item {
    display: flex;
    gap: 1.25rem;
    align-items: flex-start;
    position: relative;
    padding-bottom: 1.75rem;
    opacity: 0;
    transform: translateX(-12px);
    transition: opacity 0.5s var(--ease), transform 0.5s var(--ease);
}
.tl-item.visible {
    opacity: 1;
    transform: translateX(0);
}

.tl-dot {
    position: absolute;
    left: -2.5rem;
    top: 0.25rem;
    width: 26px;
    height: 26px;
    border-radius: 50%;
    background: var(--bg-card);
    border: 1.5px solid var(--accent);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.65rem;
    color: var(--accent);
    flex-shrink: 0;
    transition: background 0.2s;
    z-index: 1;
}
.tl-item:hover .tl-dot {
    background: var(--accent);
    color: var(--bg);
}

.tl-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--r);
    padding: 0.9rem 1.1rem;
    flex: 1;
    transition: border-color 0.2s, box-shadow 0.2s;
}
.tl-item:hover .tl-card {
    border-color: var(--border-hover);
    box-shadow: 0 2px 16px rgba(240, 165, 0, 0.1);
}

.tl-date {
    display: block;
    font-family: var(--ff-mono);
    font-size: 0.7rem;
    color: var(--accent);
    margin-bottom: 0.35rem;
    letter-spacing: 0.08em;
}

.tl-card p {
    font-size: 0.9rem;
    color: var(--text-muted);
    line-height: 1.6;
}

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

.footer-inner {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.4rem;
    text-align: center;
}

.footer-brand {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 700;
    font-size: 1rem;
}
.footer-dot { color: var(--text-muted); }
.footer-year { font-family: var(--ff-mono); color: var(--text-muted); font-size: 0.85rem; }
.footer-name { color: var(--accent); }

.footer-sub {
    font-size: 0.8rem;
    color: var(--text-muted);
}
.footer-sub a {
    color: var(--accent);
    text-decoration: underline;
    text-underline-offset: 3px;
    transition: opacity 0.2s;
}
.footer-sub a:hover { opacity: 0.7; }

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 800px) {
    .hero-inner {
        grid-template-columns: 1fr;
        justify-items: center;
        text-align: center;
    }
    .hero-name { justify-content: center; }
    .social-links { justify-content: center; }
    .hero-bio { text-align: left; }
    .pfp-wrap { width: 160px; height: 160px; }
    .pfp-img { width: 160px; height: 160px; }

    .three-col { grid-template-columns: 1fr; }
    .two-col   { grid-template-columns: 1fr; }

    .quick-links-grid {
        grid-template-columns: 1fr 1fr;
    }
    .quick-links-grid .quick-btn:last-child {
        grid-column: span 2;
    }

    #main-wrapper { gap: 3.5rem; }
}

@media (max-width: 500px) {
    .quick-links-grid {
        grid-template-columns: 1fr;
    }
    .quick-links-grid .quick-btn:last-child {
        grid-column: auto;
    }
    .hero-section { padding-top: 5rem; }
}