/* css/style.css — Midnight Navy Professional SPA Portfolio */

/* ===== ROOT VARIABLES — MIDNIGHT NAVY ===== */
:root {
    /* Backgrounds */
    --bg:           #f0f2f8;
    --bg-card:      #ffffff;
    --bg-card-alt:  #e8ebf5;

    /* Brand Colors */
    --navy:         #0f172a;
    --navy-mid:     #1e3a5f;
    --cobalt:       #2563eb;
    --cobalt-light: #60a5fa;
    --cobalt-glow:  rgba(37, 99, 235, 0.15);

    /* Text */
    --text:         #0f172a;
    --text-muted:   #475569;
    --text-light:   #94a3b8;

    /* Borders & Shadows */
    --border:       rgba(15, 23, 42, 0.08);
    --border-hover: rgba(37, 99, 235, 0.3);
    --shadow-sm:    0 4px 16px rgba(15, 23, 42, 0.05);
    --shadow-md:    0 12px 35px rgba(15, 23, 42, 0.08);
    --shadow-lg:    0 24px 60px rgba(15, 23, 42, 0.14);
    --shadow-blue:  0 10px 30px rgba(37, 99, 235, 0.2);

    /* Typography */
    --font-head:    'Plus Jakarta Sans', sans-serif;
    --font-body:    'Inter', sans-serif;

    /* Radius */
    --radius-sm:    0.75rem;
    --radius-md:    1.25rem;
    --radius-lg:    1.75rem;
    --radius-xl:    2.25rem;

    /* Transitions */
    --ease:         cubic-bezier(0.4, 0, 0.2, 1);
    --ease-spring:  cubic-bezier(0.16, 1, 0.3, 1);
    --dur-fast:     0.22s;
    --dur-mid:      0.45s;
    --dur-slow:     0.8s;
}

/* ===== RESET ===== */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
    font-family: var(--font-body);
    background-color: var(--bg);
    color: var(--text-muted);
    line-height: 1.65;
    overflow-x: hidden;
}
ul { list-style: none; }
a { text-decoration: none; color: inherit; }
img { max-width: 100%; display: block; }
button { font-family: var(--font-body); }

/* ===== SCROLLBAR ===== */
::-webkit-scrollbar { width: 7px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--cobalt-light); border-radius: 4px; border: 2px solid var(--bg); }
::-webkit-scrollbar-thumb:hover { background: var(--cobalt); }

/* ===== PRELOADER ===== */
#preloader {
    position: fixed; inset: 0;
    background: #060913;
    z-index: 9999;
    display: flex; align-items: center; justify-content: center;
    transition: opacity 0.7s var(--ease-spring), visibility 0.7s;
}
#preloader.fade-out { opacity: 0; visibility: hidden; pointer-events: none; }

.preloader-terminal {
    background: #090d16;
    border: 1px solid rgba(37, 99, 235, 0.2);
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.5), 0 0 30px rgba(37, 99, 235, 0.15);
    width: min(88%, 420px);
    border-radius: 0.75rem;
    overflow: hidden;
    font-family: 'Courier New', Courier, monospace;
}
.terminal-header {
    background: #0f172a;
    padding: 0.75rem 1.25rem;
    display: flex; align-items: center; gap: 6px;
    border-bottom: 1px solid rgba(255,255,255,0.05);
}
.terminal-header .dot {
    width: 10px; height: 10px; border-radius: 50%; display: inline-block;
}
.terminal-header .red { background: #ef4444; }
.terminal-header .yellow { background: #f59e0b; }
.terminal-header .green { background: #10b981; }
.terminal-title {
    font-size: 0.75rem; color: #64748b; margin-left: 0.5rem; font-weight: 600;
}
.terminal-body {
    padding: 1.5rem 1.25rem;
    display: flex; flex-direction: column; gap: 1.5rem;
}
.preloader-logo {
    font-family: var(--font-head);
    font-size: 3rem; font-weight: 800;
    color: #ffffff; letter-spacing: 6px;
    text-align: center;
    text-shadow: 0 0 15px rgba(37, 99, 235, 0.6);
}
.preloader-progress-container {
    display: flex; align-items: center; gap: 1rem;
}
.preloader-bar-wrap {
    flex-grow: 1; height: 6px;
    background: rgba(255,255,255,0.05);
    border-radius: 4px; overflow: hidden;
}
.preloader-bar {
    height: 100%; width: 0%;
    background: linear-gradient(to right, var(--cobalt-light), var(--cobalt));
    border-radius: 4px; box-shadow: 0 0 10px var(--cobalt);
}
.preloader-percent {
    font-size: 0.85rem; color: var(--cobalt-light); font-weight: bold; min-width: 40px; text-align: right;
}
.terminal-console {
    background: #040711;
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: 0.4rem; padding: 0.75rem 1rem;
    min-height: 48px; font-size: 0.82rem; color: #10b981;
    display: flex; flex-direction: column; gap: 0.35rem;
    overflow-y: auto; text-align: left;
}
.console-line {
    line-height: 1.4; opacity: 0.8;
}
.console-line.active::after {
    content: ' ▊';
    animation: cursor-blink 0.8s infinite;
}
@keyframes cursor-blink { 0%, 100% { opacity: 0; } 50% { opacity: 1; } }

/* ===== CURSOR GLOW ===== */
.cursor-glow {
    width: 380px; height: 380px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(37, 99, 235, 0.1) 0%, transparent 70%);
    position: fixed; pointer-events: none; z-index: 1;
    transform: translate(-50%, -50%);
}
@media (max-width: 768px) { .cursor-glow { display: none; } }

/* ===== BACKGROUND ===== */
.bg-dots {
    position: fixed; inset: 0; z-index: 0;
    background-image: radial-gradient(circle, rgba(15, 23, 42, 0.07) 1.2px, transparent 1.2px);
    background-size: 38px 38px;
    pointer-events: none;
    will-change: transform;
}
.bg-blob {
    position: fixed; border-radius: 50%;
    filter: blur(90px); pointer-events: none; z-index: 0;
}
.blob-1 {
    width: 700px; height: 700px;
    background: radial-gradient(circle, rgba(37, 99, 235, 0.12) 0%, transparent 70%);
    top: -250px; left: -200px;
}
.blob-2 {
    width: 550px; height: 550px;
    background: radial-gradient(circle, rgba(96, 165, 250, 0.1) 0%, transparent 70%);
    bottom: -180px; right: -180px;
}

/* ===== LAYOUT UTILITIES ===== */
.container { max-width: 1160px; margin: 0 auto; padding: 0 2rem; }
.section-pad { padding: 8rem 0; position: relative; z-index: 2; }

.section-chip {
    display: inline-flex; align-items: center;
    font-family: var(--font-head);
    font-size: 0.78rem; font-weight: 700;
    text-transform: uppercase; letter-spacing: 0.2em;
    color: var(--cobalt);
    background: rgba(37, 99, 235, 0.08);
    border: 1px solid rgba(37, 99, 235, 0.2);
    padding: 0.4rem 1.15rem;
    border-radius: 2rem;
    margin-bottom: 1.25rem;
}

.section-heading {
    font-family: var(--font-head);
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 800;
    color: var(--navy);
    line-height: 1.15;
    letter-spacing: -0.03em;
    margin-bottom: 3rem;
}

.section-header-center { text-align: center; }
.section-header-center .section-heading { margin-bottom: 1rem; }

.text-accent { color: var(--cobalt); }

/* ===== REVEAL ANIMATIONS ===== */
.reveal-up, .reveal-left, .reveal-right {
    opacity: 0;
    transition: opacity var(--dur-slow) var(--ease-spring), transform var(--dur-slow) var(--ease-spring);
}
.reveal-up    { transform: translateY(50px); }
.reveal-left  { transform: translateX(-50px); }
.reveal-right { transform: translateX(50px); }
.reveal-up.visible, .reveal-left.visible, .reveal-right.visible { opacity: 1; transform: none; }

.stagger-child {
    opacity: 0; transform: translateY(28px);
    transition: opacity 0.5s var(--ease-spring), transform 0.5s var(--ease-spring);
}
.stagger-child.visible { opacity: 1; transform: none; }

/* ===== BUTTONS ===== */
.btn {
    display: inline-flex; align-items: center; justify-content: center; gap: 0.5rem;
    font-family: var(--font-head); font-weight: 700;
    padding: 0.85rem 1.85rem; border-radius: var(--radius-sm);
    font-size: 0.95rem; cursor: pointer;
    transition: transform var(--dur-fast) var(--ease), box-shadow var(--dur-fast) var(--ease), background var(--dur-fast);
    outline: none; border: none;
}
.btn:hover { transform: translateY(-3px); }
.btn:active { transform: translateY(0); }

.btn-primary {
    background: var(--cobalt); color: #fff;
    box-shadow: 0 6px 20px rgba(37, 99, 235, 0.3);
}
.btn-primary:hover { background: var(--navy-mid); box-shadow: 0 10px 28px rgba(37, 99, 235, 0.4); }

.btn-outline {
    background: transparent; color: var(--navy);
    border: 1.5px solid var(--border-hover);
}
.btn-outline:hover { background: rgba(37, 99, 235, 0.05); border-color: var(--cobalt); color: var(--cobalt); }

.btn-sm { padding: 0.6rem 1.35rem; font-size: 0.85rem; }
.btn-submit { width: 100%; margin-top: 0.5rem; }

/* ===== NAVBAR ===== */
.navbar {
    position: fixed; top: 1.5rem; left: 50%; transform: translateX(-50%);
    width: min(92%, 1100px);
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--border);
    border-radius: 5rem;
    z-index: 1000;
    box-shadow: var(--shadow-sm);
    transition: top var(--dur-fast), box-shadow var(--dur-fast), background var(--dur-fast), border-radius var(--dur-fast) var(--ease-spring);
}
.navbar.menu-open {
    border-radius: var(--radius-md);
}
.navbar.scrolled {
    top: 0.75rem;
    box-shadow: 0 10px 35px rgba(15, 23, 42, 0.08);
    background: rgba(255, 255, 255, 0.97);
}
.nav-container {
    display: flex; align-items: center; justify-content: space-between;
    padding: 0.85rem 2.25rem; gap: 2rem;
}
.logo {
    font-family: var(--font-head); font-size: 1.5rem; font-weight: 800;
    color: var(--navy); letter-spacing: 3px;
}
.logo-dot { color: var(--cobalt); }

.nav-links { display: flex; gap: 0.2rem; align-items: center; }
.nav-link {
    font-family: var(--font-head); font-size: 0.9rem; font-weight: 700;
    color: var(--text-muted); padding: 0.45rem 0.9rem; border-radius: 2rem;
    transition: color var(--dur-fast), background var(--dur-fast);
}
.nav-link:hover, .nav-link.active { color: var(--cobalt); background: rgba(37, 99, 235, 0.07); }

.mobile-menu-btn {
    display: none; flex-direction: column; gap: 5px; background: none; border: none;
    cursor: pointer; padding: 4px;
}
.mobile-menu-btn span {
    display: block; width: 24px; height: 2px;
    background: var(--navy); border-radius: 2px;
    transition: transform 0.3s var(--ease), opacity 0.3s;
}
.mobile-menu-btn.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.mobile-menu-btn.open span:nth-child(2) { opacity: 0; }
.mobile-menu-btn.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ===== HERO ===== */
.hero {
    min-height: 100vh; position: relative; z-index: 2;
    display: flex; flex-direction: column; justify-content: center;
    padding: 10rem 2rem 5rem;
}
.hero-layout {
    display: grid; grid-template-columns: 1.1fr 0.9fr;
    gap: 5rem; align-items: center;
    max-width: 1160px; margin: 0 auto; width: 100%;
}

.hero-label {
    display: inline-flex; align-items: center; gap: 0.65rem;
    font-family: var(--font-head); font-size: 0.82rem; font-weight: 700;
    letter-spacing: 0.18em; text-transform: uppercase;
    color: var(--text-muted); margin-bottom: 1.5rem;
}
.hero-label-dot {
    width: 8px; height: 8px; border-radius: 50%;
    background: var(--cobalt);
    animation: pulse-dot 2s infinite;
}
@keyframes pulse-dot {
    0%, 100% { box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.2); }
    50%       { box-shadow: 0 0 0 8px rgba(37, 99, 235, 0); }
}

.hero-heading {
    font-family: var(--font-head);
    font-size: clamp(3rem, 7vw, 5.5rem);
    font-weight: 900; line-height: 1.05;
    letter-spacing: -0.04em;
    color: var(--navy);
    margin-bottom: 1.75rem;
}
.hero-name-outline {
    -webkit-text-stroke: 2.5px var(--navy);
    color: transparent;
}
.hero-name-solid { color: var(--navy); }
.hero-accent { color: var(--cobalt); }

.hero-description {
    font-size: 1.2rem; color: var(--text-muted);
    line-height: 1.75; max-width: 560px; margin-bottom: 2.75rem;
}
.hero-actions { display: flex; gap: 1.25rem; flex-wrap: wrap; margin-bottom: 3rem; }

.hero-socials { display: flex; gap: 1rem; }
.hero-social-link {
    display: inline-flex; align-items: center; justify-content: center;
    width: 42px; height: 42px; border-radius: 50%;
    background: var(--bg-card); border: 1px solid var(--border);
    color: var(--navy); font-size: 1.15rem;
    box-shadow: var(--shadow-sm);
    transition: transform var(--dur-fast), background var(--dur-fast), color var(--dur-fast), box-shadow var(--dur-fast);
}
.hero-social-link:hover {
    background: var(--cobalt); color: #fff;
    transform: translateY(-3px); box-shadow: var(--shadow-blue);
}

.hero-visual { position: relative; display: flex; align-items: center; justify-content: center; }
.hero-img-frame { position: relative; width: 380px; height: 380px; }
.hero-img {
    width: 100%; height: 100%; object-fit: cover;
    object-position: center 18%;
    border-radius: 30% 70% 70% 30% / 30% 30% 70% 70%;
    position: relative; z-index: 3;
    animation: morph 9s ease-in-out infinite;
    border: 3px solid #fff;
    box-shadow: var(--shadow-lg);
}
@keyframes morph {
    0%   { border-radius: 30% 70% 70% 30% / 30% 30% 70% 70%; }
    50%  { border-radius: 55% 45% 25% 75% / 25% 75% 25% 75%; }
    100% { border-radius: 30% 70% 70% 30% / 30% 30% 70% 70%; }
}
.hero-img-aura {
    position: absolute; inset: -20px; z-index: 1; border-radius: 50%;
    background: radial-gradient(circle, rgba(37, 99, 235, 0.2) 0%, transparent 65%);
    animation: aura-pulse 4s ease-in-out infinite;
}
@keyframes aura-pulse {
    0%, 100% { opacity: 0.8; transform: scale(1); }
    50%       { opacity: 1; transform: scale(1.05); }
}
.hero-img-ring {
    position: absolute; border-radius: 50%; border: 1.5px dashed;
    z-index: 2; animation: ring-spin 20s linear infinite;
}
.hero-img-ring-1 { inset: -30px; border-color: rgba(37, 99, 235, 0.25); }
.hero-img-ring-2 { inset: -55px; border-color: rgba(96, 165, 250, 0.15); animation-direction: reverse; animation-duration: 30s; }
@keyframes ring-spin { to { transform: rotate(360deg); } }

.hero-badge {
    position: absolute; z-index: 5;
    display: flex; align-items: center; gap: 0.6rem;
    background: #fff; border: 1px solid var(--border);
    border-radius: var(--radius-md); padding: 0.65rem 1.15rem;
    font-family: var(--font-head); font-size: 0.82rem; font-weight: 700;
    color: var(--navy); box-shadow: var(--shadow-md);
    white-space: nowrap;
}
.hero-badge i { color: var(--cobalt); font-size: 1.1rem; }
.badge-top    { top: 8%; right: -10%; animation: float-badge 5s ease-in-out infinite; }
.badge-bottom { bottom: 8%; left: -10%; animation: float-badge 5s ease-in-out 1.5s infinite; }
@keyframes float-badge { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-8px); } }

.scroll-indicator {
    position: absolute; bottom: 2rem; left: 50%; transform: translateX(-50%);
    display: flex; flex-direction: column; align-items: center; gap: 0.5rem;
    font-family: var(--font-head); font-size: 0.75rem; font-weight: 700;
    color: var(--text-light); letter-spacing: 0.15em; text-transform: uppercase;
    animation: fade-bob 3s ease-in-out infinite;
}
.scroll-line {
    width: 1.5px; height: 40px;
    background: linear-gradient(to bottom, var(--cobalt-light), transparent);
    border-radius: 1px;
}
@keyframes fade-bob {
    0%, 100% { opacity: 0.5; transform: translateX(-50%) translateY(0); }
    50%       { opacity: 1;   transform: translateX(-50%) translateY(5px); }
}

/* ===== ABOUT ===== */
.about { background: linear-gradient(180deg, var(--bg) 0%, var(--bg-card-alt) 100%); }
.about-layout { display: grid; grid-template-columns: 1fr 1fr; gap: 5rem; align-items: center; }
.about-text {
    font-size: 1.15rem; line-height: 1.8;
    color: var(--text-muted); margin-bottom: 1.5rem;
}
.about-text strong { color: var(--navy); font-weight: 700; }
.about-actions { display: flex; align-items: center; flex-wrap: wrap; gap: 1.25rem; margin-top: 2rem; }
.about-socials { display: flex; gap: 0.75rem; }
.social-pill {
    display: inline-flex; align-items: center; gap: 0.4rem;
    font-family: var(--font-head); font-size: 0.85rem; font-weight: 700;
    color: var(--navy); background: var(--bg-card);
    border: 1px solid var(--border); border-radius: 2rem;
    padding: 0.55rem 1.15rem;
    transition: background var(--dur-fast), transform var(--dur-fast), box-shadow var(--dur-fast), border-color var(--dur-fast);
}
.social-pill:hover { background: rgba(37,99,235,0.06); border-color: var(--cobalt); color: var(--cobalt); transform: translateY(-2px); }

/* About Stats Bento */
.about-stats-bento { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.stat-card {
    background: var(--bg-card); border: 1px solid var(--border);
    border-radius: var(--radius-md); padding: 1.5rem;
    box-shadow: var(--shadow-sm);
    transition: transform var(--dur-fast), box-shadow var(--dur-fast), border-color var(--dur-fast);
    display: flex; flex-direction: column; gap: 0.5rem;
}
.stat-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-md); border-color: var(--border-hover); }
.stat-primary { background: var(--navy); border-color: var(--navy); }
.stat-primary .stat-number { color: #fff; }
.stat-primary .stat-label { color: rgba(255,255,255,0.6); }
.stat-number { font-family: var(--font-head); font-size: 3rem; font-weight: 900; color: var(--navy); line-height: 1; }
.stat-label  { font-family: var(--font-head); font-size: 0.85rem; font-weight: 600; color: var(--text-muted); }
.stat-icon   { font-size: 2rem; color: var(--cobalt); }
.stat-wide   { grid-column: 1 / -1; flex-direction: row; align-items: center; gap: 1rem; }
.stat-icon-sm { font-size: 1.5rem; color: var(--cobalt); flex-shrink: 0; }
.stat-info   { display: flex; flex-direction: column; }
.stat-label-sm { font-size: 0.78rem; font-weight: 600; color: var(--text-light); text-transform: uppercase; letter-spacing: 0.1em; }
.stat-value-sm { font-family: var(--font-head); font-size: 1rem; font-weight: 700; color: var(--navy); }

/* ===== SKILLS & TOOLS ===== */
.skills { background: var(--bg); }

/* Filter Tabs */
.filter-tabs {
    display: flex; justify-content: center; flex-wrap: wrap;
    gap: 0.6rem; margin-bottom: 3.5rem;
}
.filter-tabs-left { justify-content: flex-start; margin-bottom: 0; margin-top: 1.5rem; }
.filter-tab {
    font-family: var(--font-head); font-size: 0.85rem; font-weight: 700;
    color: var(--text-muted); background: var(--bg-card);
    border: 1px solid var(--border); border-radius: 2rem;
    padding: 0.6rem 1.45rem; cursor: pointer;
    transition: all var(--dur-fast) var(--ease);
}
.filter-tab:hover { color: var(--cobalt); border-color: rgba(37,99,235,0.3); }
.filter-tab.active {
    background: var(--cobalt); color: #fff;
    border-color: var(--cobalt); box-shadow: 0 6px 18px rgba(37,99,235,0.25);
}

/* Bento Grid Skills */
.skills-bento {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(155px, 1fr));
    gap: 1.1rem;
}
.skill-bento-card {
    background: var(--bg-card); border: 1px solid var(--border);
    border-radius: var(--radius-md); padding: 1.5rem;
    display: flex; flex-direction: column; align-items: center; justify-content: center;
    text-align: center; gap: 0.75rem;
    position: relative; overflow: hidden;
    box-shadow: var(--shadow-sm); min-height: 130px;
    transition: transform var(--dur-fast) var(--ease-spring), border-color var(--dur-fast), box-shadow var(--dur-fast);
    cursor: default;
}
.skill-bento-card:hover {
    transform: translateY(-6px) scale(1.02);
    border-color: var(--border-hover);
    box-shadow: var(--shadow-md);
}
.skill-bento-card.skill-wide {
    grid-column: span 2;
    flex-direction: row; justify-content: flex-start;
    text-align: left; gap: 1.25rem; min-height: 100px;
    padding: 1.25rem 1.75rem;
}
.skill-bento-icon {
    font-size: 2.5rem; line-height: 1; color: var(--navy);
    transition: transform var(--dur-fast) var(--ease-spring);
}
.skill-bento-card:hover .skill-bento-icon { transform: scale(1.15); }
.skill-bento-card h3 {
    font-family: var(--font-head); font-size: 0.9rem; font-weight: 700; color: var(--navy);
}
.skill-bento-info p { font-size: 0.78rem; color: var(--text-muted); margin-top: 0.2rem; }
.skill-bento-glow {
    position: absolute; right: -20px; bottom: -20px;
    width: 100px; height: 100px; border-radius: 50%;
    background: radial-gradient(circle, rgba(37, 99, 235, 0.12) 0%, transparent 70%);
    pointer-events: none;
}
.skill-bento-card.hidden { display: none !important; }

/* ===== EXPERIENCE ===== */
.experience { background: linear-gradient(180deg, var(--bg) 0%, var(--bg-card-alt) 100%); }
.experience-layout { display: grid; grid-template-columns: 300px 1fr; gap: 5rem; align-items: start; }
.experience-header .section-heading { margin-bottom: 0.5rem; }

.timeline { position: relative; padding-left: 2rem; }
.timeline::before {
    content: ''; position: absolute; top: 0; left: 0;
    width: 2px; height: 100%;
    background: linear-gradient(to bottom, var(--cobalt), rgba(37,99,235,0.05));
    border-radius: 1px;
}
.timeline-item { position: relative; padding-bottom: 3rem; }
.timeline-item:last-child { padding-bottom: 0; }
.timeline-item.hidden { display: none !important; }

.timeline-dot {
    position: absolute; left: -2.8rem; top: 0.25rem;
    width: 42px; height: 42px;
    background: var(--bg-card); border: 2px solid var(--cobalt-light);
    border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    color: var(--cobalt); font-size: 1rem; z-index: 2;
    box-shadow: 0 0 0 6px var(--bg);
    transition: background var(--dur-fast), color var(--dur-fast), border-color var(--dur-fast);
}
.timeline-item:hover .timeline-dot { background: var(--cobalt); color: #fff; border-color: var(--cobalt); }

.timeline-card {
    background: var(--bg-card); border: 1px solid var(--border);
    border-radius: var(--radius-md); padding: 1.75rem;
    box-shadow: var(--shadow-sm);
    transition: transform var(--dur-fast), box-shadow var(--dur-fast), border-color var(--dur-fast);
}
.timeline-item:hover .timeline-card { transform: translateX(6px); box-shadow: var(--shadow-md); border-color: var(--border-hover); }

.timeline-meta { display: flex; align-items: center; gap: 0.75rem; margin-bottom: 0.85rem; flex-wrap: wrap; }
.timeline-date {
    font-family: var(--font-head); font-size: 0.78rem; font-weight: 700;
    color: #fff; background: var(--cobalt);
    padding: 0.3rem 0.9rem; border-radius: 2rem;
}
.timeline-tag {
    font-family: var(--font-head); font-size: 0.75rem; font-weight: 700;
    color: var(--text-muted); background: var(--bg-card-alt);
    border: 1px solid var(--border); padding: 0.3rem 0.9rem; border-radius: 2rem;
}
.timeline-card h3 { font-family: var(--font-head); font-size: 0.9rem; font-weight: 700; color: var(--text-muted); margin-bottom: 0.25rem; }
.timeline-card h4 { font-family: var(--font-head); font-size: 1.2rem; font-weight: 800; color: var(--navy); margin-bottom: 0.85rem; }
.timeline-card p  { font-size: 1rem; color: var(--text-muted); line-height: 1.65; margin-bottom: 1rem; }
.timeline-tech    { display: flex; flex-wrap: wrap; gap: 0.5rem; }
.timeline-tech span {
    font-family: var(--font-head); font-size: 0.75rem; font-weight: 700;
    background: rgba(37,99,235,0.07); border: 1px solid rgba(37,99,235,0.15);
    color: var(--cobalt); padding: 0.3rem 0.85rem; border-radius: 2rem;
}

/* ===== ACHIEVEMENTS ===== */
.achievements { background: var(--bg); }

.achievements-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.25rem;
    align-items: stretch;
}

/* Base card */
.achv-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 2rem;
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
    box-shadow: var(--shadow-sm);
    transition: transform var(--dur-fast) var(--ease-spring), box-shadow var(--dur-fast), border-color var(--dur-fast);
}
.achv-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-md);
    border-color: var(--border-hover);
}

/* Featured card — dark navy */
.achv-featured {
    background: var(--navy);
    border-color: var(--navy);
}
.achv-featured:hover { border-color: var(--cobalt); }

/* Top row: icon + rank */
.achv-top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.75rem;
}
.achv-icon {
    width: 48px; height: 48px;
    border-radius: var(--radius-sm);
    background: rgba(37,99,235,0.1);
    border: 1px solid rgba(37,99,235,0.18);
    display: flex; align-items: center; justify-content: center;
    font-size: 1.35rem; color: var(--cobalt);
    flex-shrink: 0;
}
.achv-featured .achv-icon {
    background: rgba(96,165,250,0.12);
    border-color: rgba(96,165,250,0.25);
    color: var(--cobalt-light);
}

/* Rank badge */
.achv-rank {
    font-family: var(--font-head); font-size: 0.8rem; font-weight: 800;
    display: inline-flex; align-items: center; gap: 0.35rem;
    padding: 0.35rem 0.9rem; border-radius: 2rem;
}
.achv-rank-gold   { background: rgba(255,215,0,0.12);  color: #B8860B; border: 1px solid rgba(255,215,0,0.3);  }
.achv-rank-silver { background: rgba(192,192,192,0.15); color: #6B7280; border: 1px solid rgba(192,192,192,0.35); }
.achv-rank-bronze { background: rgba(205,127,50,0.12);  color: #92400E; border: 1px solid rgba(205,127,50,0.3);  }
.achv-featured .achv-rank-gold { background: rgba(255,215,0,0.15); color: #FFD700; border-color: rgba(255,215,0,0.35); }

/* Body */
.achv-body {
    display: flex;
    flex-direction: column;
    gap: 0.65rem;
    flex-grow: 1;
}
.achv-body h3 {
    font-family: var(--font-head);
    font-size: 1.15rem; font-weight: 800;
    color: var(--navy); line-height: 1.3;
}
.achv-featured .achv-body h3 { color: #fff; }

/* Subtitle label */
.achv-subtitle {
    display: flex; align-items: center; gap: 0.45rem;
    font-family: var(--font-head); font-size: 0.83rem; font-weight: 700;
    color: var(--cobalt);
}
.achv-featured .achv-subtitle { color: var(--cobalt-light); }

/* Description */
.achv-body p {
    font-size: 0.9rem;
    color: var(--text-muted);
    line-height: 1.65;
}
.achv-featured .achv-body p { color: rgba(255,255,255,0.65); }

/* Venue */
.achv-venue {
    display: flex; align-items: center; gap: 0.4rem;
    font-size: 0.8rem; color: rgba(255,255,255,0.45);
    margin-top: auto; padding-top: 0.5rem;
    border-top: 1px solid rgba(255,255,255,0.08);
}


/* ===== PROJECTS — TEXT-BASED LIST ===== */
.projects { background: linear-gradient(180deg, var(--bg-card-alt) 0%, var(--bg) 100%); }

.projects-list {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.project-list-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-left: 4px solid var(--cobalt);
    border-radius: var(--radius-lg);
    padding: 2.25rem;
    display: flex;
    gap: 2rem;
    align-items: flex-start;
    box-shadow: var(--shadow-sm);
    transition: transform var(--dur-fast) var(--ease-spring), box-shadow var(--dur-fast), border-color var(--dur-fast);
}
.project-list-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
    border-left-color: var(--cobalt);
}
.project-list-featured {
    border-left-width: 5px;
}

.project-list-left {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
    flex-shrink: 0;
}
.project-list-icon {
    width: 60px; height: 60px;
    background: rgba(37,99,235,0.08);
    border: 1px solid rgba(37,99,235,0.18);
    border-radius: var(--radius-md);
    display: flex; align-items: center; justify-content: center;
    font-size: 1.6rem; color: var(--cobalt);
    transition: background var(--dur-fast), transform var(--dur-fast);
}
.project-list-card:hover .project-list-icon {
    background: var(--cobalt);
    color: #fff;
    transform: scale(1.08);
}

.project-number {
    font-family: var(--font-head); font-size: 0.72rem; font-weight: 800;
    color: var(--cobalt); letter-spacing: 0.18em;
}

.project-list-content { flex-grow: 1; min-width: 0; }

.project-list-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    margin-bottom: 0.85rem;
    flex-wrap: wrap;
}
.project-list-header h3 {
    font-family: var(--font-head);
    font-size: 1.4rem; font-weight: 800;
    color: var(--navy); line-height: 1.2;
}
.project-list-desc {
    font-size: 1rem; color: var(--text-muted) !important;
    line-height: 1.65; margin-bottom: 1.25rem;
}

.project-highlights {
    list-style: none;
    display: flex; flex-direction: column; gap: 0.5rem;
    margin-bottom: 1.35rem;
}
.project-highlights li {
    display: flex; align-items: flex-start; gap: 0.65rem;
    font-size: 0.92rem; color: var(--text-muted) !important; line-height: 1.5;
}
.project-highlights li i {
    color: var(--cobalt); font-size: 0.75rem;
    margin-top: 0.25rem; flex-shrink: 0;
}

.project-badges { display: flex; flex-wrap: wrap; gap: 0.4rem; }
.badge {
    font-family: var(--font-head); font-size: 0.72rem; font-weight: 700;
    color: var(--cobalt); background: rgba(37, 99, 235, 0.08);
    border: 1px solid rgba(37, 99, 235, 0.2);
    padding: 0.28rem 0.85rem; border-radius: 2rem;
}
.project-footer { margin-top: auto; }

/* ===== CONTACT ===== */
.contact { background: var(--bg); }
.contact-layout { display: grid; grid-template-columns: 1fr 1.3fr; gap: 5rem; align-items: start; }
.contact-desc { font-size: 1.15rem; color: var(--text-muted); line-height: 1.75; margin-bottom: 2.5rem; max-width: 400px; }
.contact-links { display: flex; flex-direction: column; gap: 1rem; }
.contact-link-item {
    display: flex; align-items: center; gap: 1rem;
    background: var(--bg-card); border: 1px solid var(--border);
    border-radius: var(--radius-md); padding: 1rem 1.25rem;
    box-shadow: var(--shadow-sm);
    transition: transform var(--dur-fast), box-shadow var(--dur-fast), border-color var(--dur-fast);
}
.contact-link-item:hover { transform: translateX(6px); box-shadow: var(--shadow-md); border-color: var(--border-hover); }
.contact-link-icon {
    width: 44px; height: 44px; border-radius: 50%;
    background: rgba(37,99,235,0.08); border: 1px solid rgba(37,99,235,0.15);
    display: flex; align-items: center; justify-content: center;
    font-size: 1.15rem; color: var(--cobalt); flex-shrink: 0;
}
.contact-link-label { font-size: 0.75rem; color: var(--text-light); font-weight: 600; text-transform: uppercase; letter-spacing: 0.1em; margin-bottom: 0.15rem; }
.contact-link-value { font-family: var(--font-head); font-size: 0.9rem; font-weight: 700; color: var(--navy); }

.contact-form-wrap {
    background: var(--bg-card); border: 1px solid var(--border);
    border-radius: var(--radius-xl); padding: 3rem;
    box-shadow: var(--shadow-md);
}
.contact-form { display: flex; flex-direction: column; gap: 1.5rem; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1.25rem; }
.form-group { display: flex; flex-direction: column; gap: 0.5rem; }
.form-group label {
    font-family: var(--font-head); font-size: 0.88rem; font-weight: 700; color: var(--navy);
}
.form-group input, .form-group textarea {
    font-family: var(--font-body); font-size: 0.95rem;
    color: var(--navy); background: var(--bg);
    border: 1.5px solid var(--border); border-radius: var(--radius-sm);
    padding: 0.9rem 1.2rem; outline: none;
    transition: border-color var(--dur-fast), box-shadow var(--dur-fast), background var(--dur-fast);
}
.form-group input::placeholder, .form-group textarea::placeholder { color: var(--text-light); }
.form-group input:focus, .form-group textarea:focus {
    border-color: var(--cobalt);
    box-shadow: 0 0 0 3px rgba(37,99,235,0.12);
    background: var(--bg-card);
}
.form-group textarea { resize: vertical; min-height: 130px; }

/* ===== FOOTER ===== */
.footer { background: var(--navy); padding: 4rem 0 2.5rem; position: relative; z-index: 2; }
.footer-layout {
    display: flex; align-items: center; justify-content: space-between;
    flex-wrap: wrap; gap: 2rem;
    padding-bottom: 2.5rem;
    border-bottom: 1px solid rgba(255,255,255,0.07);
    margin-bottom: 2rem;
}
.footer-brand .logo { color: #fff; }
.footer-brand p { font-size: 0.85rem; color: rgba(255,255,255,0.45); margin-top: 0.35rem; }
.footer-links { display: flex; gap: 2rem; }
.footer-links a {
    font-family: var(--font-head); font-size: 0.88rem; font-weight: 700;
    color: rgba(255,255,255,0.5); transition: color var(--dur-fast);
}
.footer-links a:hover { color: #fff; }
.footer-socials { display: flex; gap: 0.85rem; }
.footer-socials a {
    display: inline-flex; align-items: center; justify-content: center;
    width: 42px; height: 42px; border-radius: 50%;
    background: rgba(255,255,255,0.06); border: 1px solid rgba(255,255,255,0.1);
    color: rgba(255,255,255,0.6); font-size: 1.1rem;
    transition: background var(--dur-fast), color var(--dur-fast), transform var(--dur-fast);
}
.footer-socials a:hover { background: var(--cobalt); color: #fff; transform: translateY(-3px); }
.footer-bottom { text-align: center; }
.footer-bottom p { font-size: 0.82rem; color: rgba(255,255,255,0.35); }

/* ===== RESPONSIVE ===== */
@media (max-width: 1024px) {
    .hero-layout { grid-template-columns: 1fr; text-align: center; gap: 4rem; }
    .hero-label  { justify-content: center; }
    .hero-description { margin-inline: auto; }
    .hero-actions { justify-content: center; }
    .hero-socials { justify-content: center; }
    .hero-visual  { justify-content: center; }
    .badge-top    { right: 0; }
    .badge-bottom { left: 0; }

    .about-layout { grid-template-columns: 1fr; gap: 3rem; }
    .experience-layout { grid-template-columns: 1fr; gap: 2.5rem; }

    .achievements-grid { grid-template-columns: 1fr 1fr; }
    .achv-featured { grid-column: span 2; }

    .project-list-card { padding: 1.75rem; gap: 1.5rem; }

    .contact-layout { grid-template-columns: 1fr; gap: 3rem; }
}

@media (max-width: 768px) {
    .container { padding: 0 1.25rem; }
    .section-pad { padding: 5rem 0; }
    .section-heading { font-size: 1.85rem; }

    .mobile-menu-btn { display: flex; }
    .nav-container { flex-wrap: wrap; }
    .nav-links {
        display: none; flex-direction: column;
        width: 100%; padding: 1rem 0 1.5rem;
        gap: 0.25rem; text-align: center;
        border-top: 1px solid var(--border); margin-top: 0.5rem;
    }
    .nav-links.open { display: flex; }
    .nav-link { padding: 0.65rem 1rem; border-radius: var(--radius-sm); }

    .hero { padding: 8rem 1.5rem 4rem; }
    .hero-heading { font-size: clamp(2.5rem, 10vw, 3.5rem); }
    .hero-img-frame { width: 280px; height: 280px; }
    .hero-img-ring-1 { inset: -15px; }
    .hero-img-ring-2 { inset: -30px; }
    .badge-top, .badge-bottom { display: none; }
    .scroll-indicator { display: none; }

    .skills-bento { grid-template-columns: repeat(auto-fill, minmax(130px, 1fr)); }
    .skill-bento-card { padding: 1rem; min-height: 110px; }
    .skill-bento-card.skill-wide { padding: 1rem 1.25rem; min-height: 90px; grid-column: span 2; }

    .timeline { padding-left: 1.5rem; }
    .timeline-dot { left: -2.625rem; width: 36px; height: 36px; font-size: 0.9rem; }

    .achievements-grid { grid-template-columns: 1fr; }
    .achv-featured { order: -1; grid-column: span 1; }

    .project-list-card { flex-direction: column; padding: 1.25rem; gap: 1rem; }
    .project-list-left { flex-direction: row; align-items: center; }
    .project-list-header { flex-direction: column; align-items: flex-start; }

    .form-row { grid-template-columns: 1fr; }
    .contact-form-wrap { padding: 2rem 1.5rem; }
    .footer-layout { flex-direction: column; align-items: center; text-align: center; }
    .footer-links { flex-wrap: wrap; justify-content: center; gap: 1rem; }
}

@media (max-width: 480px) {
    .hero-actions { flex-direction: column; }
    .btn { width: 100%; }
    .hero-img-ring { display: none; }
    .about-actions { flex-direction: column; align-items: flex-start; }
    .about-stats-bento { grid-template-columns: 1fr; }
    .skills-bento { grid-template-columns: repeat(2, 1fr); gap: 0.8rem; }
    .skill-bento-card { padding: 0.85rem; min-height: 100px; }
    .skill-bento-card.skill-wide { padding: 0.85rem 1rem; min-height: 80px; grid-column: span 2; }
    .filter-tab { font-size: 0.8rem; padding: 0.5rem 1rem; }
}