/* ═══════════════════════════════════════════════════════════════
   WOW EFFECTS CSS — portohilm portfolio  (v3 — Calm & Advanced)
   Smooth, premium, interactive micro-animations
   ═══════════════════════════════════════════════════════════════ */

/* ─── CUSTOM PROPERTIES ─────────────────────────────────────── */
:root {
    --ease-smooth: cubic-bezier(0.4, 0, 0.2, 1);
    --ease-bounce: cubic-bezier(0.34, 1.56, 0.64, 1);
    --ease-expo-out: cubic-bezier(0.16, 1, 0.3, 1);
    --ease-back-out: cubic-bezier(0.34, 1.4, 0.64, 1);
    --dur-fast: 0.18s;
    --dur-base: 0.35s;
    --dur-slow: 0.6s;
    --dur-xslow: 0.9s;

    --color-neon: #00f3ff;
    --color-purple: #bc13fe;
    --color-pink: #f472b6;

    --glow-neon: 0 0 20px rgba(0, 243, 255, 0.3);
    --glow-purple: 0 0 20px rgba(188, 19, 254, 0.3);
}

/* ─── ANIMATED KEYFRAMES ────────────────────────────────────── */
@keyframes rotate-border {
    to {
        --angle: 360deg;
    }
}

@keyframes float-gentle {
    0% {
        transform: translateY(0px) rotate(0deg);
    }

    33% {
        transform: translateY(-12px) rotate(1.5deg);
    }

    66% {
        transform: translateY(-6px) rotate(-1deg);
    }

    100% {
        transform: translateY(0px) rotate(0deg);
    }
}

@keyframes pulse-glow {

    0%,
    100% {
        box-shadow: 0 0 8px rgba(0, 243, 255, 0.2), 0 0 20px rgba(0, 243, 255, 0.1);
    }

    50% {
        box-shadow: 0 0 16px rgba(0, 243, 255, 0.5), 0 0 40px rgba(0, 243, 255, 0.2);
    }
}

@keyframes breathe {

    0%,
    100% {
        opacity: 0.4;
        transform: scale(1);
    }

    50% {
        opacity: 1;
        transform: scale(1.08);
    }
}

@keyframes slide-underline {
    from {
        transform: scaleX(0);
        transform-origin: left;
    }

    to {
        transform: scaleX(1);
        transform-origin: left;
    }
}

@keyframes content-appear {
    from {
        opacity: 0;
        transform: translateY(20px);
        filter: blur(4px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
        filter: blur(0px);
    }
}

/* ─── ANIMATED GRADIENT BORDER (CONIC) ─────────────────────── */
@property --angle {
    syntax: '<angle>';
    initial-value: 0deg;
    inherits: false;
}

.glass-card {
    position: relative;
    transition:
        box-shadow var(--dur-base) var(--ease-smooth),
        border-color var(--dur-base) var(--ease-smooth),
        background-color var(--dur-base) var(--ease-smooth);
    will-change: transform, opacity;
}

.glass-card::after {
    content: '';
    position: absolute;
    inset: -1px;
    z-index: -1;
    background: conic-gradient(from var(--angle),
            transparent 60%,
            rgba(0, 243, 255, 0.6),
            rgba(188, 19, 254, 0.4),
            transparent);
    border-radius: inherit;
    opacity: 0;
    transition: opacity var(--dur-slow) var(--ease-smooth);
    animation: rotate-border 5s linear infinite;
    animation-play-state: paused;
}

.glass-card:hover::after {
    opacity: 1;
    animation-play-state: running;
}

.glass-card:hover {
    transform: translateY(-4px) scale(1.005);
    box-shadow:
        0 20px 60px rgba(0, 0, 0, 0.5),
        0 4px 20px rgba(0, 243, 255, 0.08);
}

/* ─── REVEAL ANIMATION CLASSES ──────────────────────────────── */
/* These are set up by GSAP, but defined here for CSS fallback */
.anim-fade {
    opacity: 0;
    transition: opacity var(--dur-slow) var(--ease-smooth),
        transform var(--dur-slow) var(--ease-expo-out);
}

.anim-slide-up {
    opacity: 0;
    transform: translateY(50px);
}

.anim-slide-left {
    opacity: 0;
    transform: translateX(-40px);
}

.anim-slide-right {
    opacity: 0;
    transform: translateX(40px);
}

.anim-scale {
    opacity: 0;
    transform: scale(0.92);
}

.anim-visible {
    opacity: 1 !important;
    transform: none !important;
}

/* ─── SUBTLE SCANLINE (REDUCED) ─────────────────────────────── */
body::before {
    content: "";
    display: block;
    position: fixed;
    inset: 0;
    background:
        linear-gradient(rgba(0, 0, 0, 0) 50%, rgba(0, 0, 0, 0.04) 50%),
        linear-gradient(90deg, rgba(255, 0, 0, 0.01), rgba(0, 255, 0, 0.005), rgba(0, 0, 255, 0.01));
    background-size: 100% 3px, 3px 100%;
    z-index: 9998;
    pointer-events: none;
    opacity: 0.3;
}

/* ─── SMOOTH NAV LINKS ──────────────────────────────────────── */
.nav-link {
    position: relative;
    transition: color var(--dur-fast) var(--ease-smooth);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 100%;
    height: 2px;
    background: linear-gradient(90deg, var(--color-neon), var(--color-purple));
    transform: scaleX(0);
    transform-origin: left;
    transition: transform var(--dur-base) var(--ease-bounce);
    border-radius: 999px;
}

.nav-link:hover::after {
    transform: scaleX(1);
}

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

/* ─── BUTTON: NEON MAGIC ────────────────────────────────────── */
.btn-neon {
    position: relative;
    overflow: hidden;
    background: linear-gradient(135deg, rgba(0, 243, 255, 0.12), rgba(0, 243, 255, 0.05));
    border: 1px solid rgba(0, 243, 255, 0.3);
    color: var(--color-neon);
    transition:
        box-shadow var(--dur-base) var(--ease-smooth),
        background var(--dur-base) var(--ease-smooth),
        border-color var(--dur-base) var(--ease-smooth);
}

.btn-neon::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at 50% 50%, rgba(0, 243, 255, 0.3), transparent 70%);
    opacity: 0;
    transition: opacity var(--dur-base) var(--ease-smooth);
}

.btn-neon:hover::before {
    opacity: 1;
}

.btn-neon:hover {
    transform: translateY(-3px) scale(1.02);
    box-shadow:
        0 8px 30px rgba(0, 243, 255, 0.25),
        0 2px 8px rgba(0, 243, 255, 0.15),
        0 0 0 1px rgba(0, 243, 255, 0.4) inset;
    border-color: rgba(0, 243, 255, 0.7);
}

.btn-neon:active {
    transform: translateY(-1px) scale(0.99);
    transition-duration: 0.08s;
}

/* ─── SECTION DIVIDER GLOW ──────────────────────────────────── */
.section-divider {
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(0, 243, 255, 0.25), transparent);
    box-shadow: 0 0 12px rgba(0, 243, 255, 0.15);
    opacity: 0.7;
    margin: 4rem auto;
    border: none;
}

/* ─── SCROLL PROGRESS BAR ───────────────────────────────────── */
.scroll-progress {
    position: fixed;
    top: 0;
    left: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--color-neon) 0%, var(--color-purple) 50%, var(--color-pink) 100%);
    z-index: 100000;
    width: 0%;
    box-shadow: 0 0 12px rgba(0, 243, 255, 0.6);
    transition: width 0.1s linear;
}

/* ─── FLOATING ELEMENTS (SMOOTH) ────────────────────────────── */
.floating-3d-elements div {
    animation: float-gentle 9s ease-in-out infinite;
}

.floating-3d-elements div:nth-child(2) {
    animation-delay: -3s;
    animation-duration: 13s;
}

.floating-3d-elements div:nth-child(3) {
    animation-delay: -6s;
    animation-duration: 11s;
}

/* ─── TECH ICON HOVER ────────────────────────────────────────── */
.tech-icon-item,
.group[class*="flex-col items-center"] {
    transition:
        background var(--dur-base) var(--ease-smooth),
        border-color var(--dur-base) var(--ease-smooth),
        box-shadow var(--dur-base) var(--ease-smooth);
}

/* ─── SKILL BAR ─────────────────────────────────────────────── */
.skill-bar {
    transition: width 1.8s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.skill-bar::after {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    animation: skeleton-shimmer 2s ease-in-out infinite;
}

@keyframes skeleton-shimmer {
    from {
        left: -100%;
    }

    to {
        left: 100%;
    }
}

/* ─── SECTION TITLE ─────────────────────────────────────────── */
.section-title {
    position: relative;
}

/* ─── TIMELINE ITEM ─────────────────────────────────────────── */
.timeline-container .relative.pl-24 {
    transition: transform var(--dur-base) var(--ease-smooth);
}

/* ─── IMAGE HOVER ────────────────────────────────────────────── */
.group:hover img {
    filter: contrast(1.05) brightness(1.06) saturate(1.1);
    transition: filter var(--dur-slow) var(--ease-smooth);
}

/* ─── GLOW ANIMATION (passive, for decorative orbs) ─────────── */
.animate-glow-pulse {
    animation: pulse-glow 3s ease-in-out infinite;
}

/* ─── CANVAS ─────────────────────────────────────────────────── */
#three-canvas {
    pointer-events: auto;
    transition: opacity 0.5s ease;
}

/* ─── GLOBAL: SMOOTH INTERACTIVE ELEMENTS ───────────────────── */
a,
button {
    transition:
        color var(--dur-fast) var(--ease-smooth),
        background var(--dur-fast) var(--ease-smooth),
        opacity var(--dur-fast) var(--ease-smooth);
}

/* ─── REDUCED MOTION ─────────────────────────────────────────── */
@media (prefers-reduced-motion: reduce) {

    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }

    .anim-fade,
    .anim-slide-up,
    .anim-slide-left,
    .anim-slide-right,
    .anim-scale {
        opacity: 1 !important;
        transform: none !important;
    }
}

/* ─── MOBILE: REDUCE HEAVY EFFECTS ─────────────────────────── */
@media (hover: none) and (pointer: coarse) {
    .glass-card:hover::after {
        opacity: 0;
    }

    .glass-card:hover {
        transform: none;
    }

    .btn-neon:hover {
        transform: none;
        box-shadow: none;
    }

    .glass-card:active {
        transform: scale(0.98);
    }

    .btn-neon:active {
        transform: scale(0.97);
    }

    body::before {
        display: none;
    }

    /* Remove scanlines on mobile */
}