/* ==========================================================================
   animations.css
   Handles smooth Apple-style micro-interactions and scroll reveals
   ========================================================================== */

/* --------------------------------------------------------------------------
   SCROLL REVEAL ANIMATIONS
   (Triggered by JavaScript adding the 'active' class)
   -------------------------------------------------------------------------- */

.reveal-up {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 1.2s cubic-bezier(0.25, 1, 0.5, 1), transform 1.2s cubic-bezier(0.25, 1, 0.5, 1);
    will-change: transform, opacity;
}

.reveal-up.active {
    opacity: 1;
    transform: translateY(0);
}

.zoom-in {
    opacity: 0;
    transform: scale(0.95);
    transition: opacity 1.2s cubic-bezier(0.25, 1, 0.5, 1), transform 1.2s cubic-bezier(0.25, 1, 0.5, 1);
    will-change: transform, opacity;
}

.zoom-in.active {
    opacity: 1;
    transform: scale(1);
}

/* Staggered Delays */
.delay-1 { transition-delay: 0.1s !important; }
.delay-2 { transition-delay: 0.2s !important; }
.delay-3 { transition-delay: 0.3s !important; }
.delay-4 { transition-delay: 0.4s !important; }
.delay-5 { transition-delay: 0.5s !important; }
.delay-6 { transition-delay: 0.6s !important; }

/* --------------------------------------------------------------------------
   PHOTO REVEAL (Curtain Wipe)
   -------------------------------------------------------------------------- */

/* --------------------------------------------------------------------------
   PHOTO REVEAL (Curtain Wipe)
   -------------------------------------------------------------------------- */

.photo-container {
    position: relative;
    border-radius: 20px;
    overflow: hidden;
    aspect-ratio: 3/4;
    width: 100%;
    background: #eee;
}

.profile-photo-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center top;
    filter: grayscale(1);
    transform: scale(1.08);
    transition: transform 1.2s cubic-bezier(0.76, 0, 0.24, 1);
}

.photo-reveal-overlay {
    position: absolute;
    inset: 0;
    background: #1A1A18;
    z-index: 2;
    transform: translateY(0);
}

.photo-container.active .photo-reveal-overlay {
    animation: curtainRaise 1s cubic-bezier(0.76, 0, 0.24, 1) forwards;
}

.photo-container.active .profile-photo-img {
    transform: scale(1);
}

@keyframes curtainRaise {
    to { transform: translateY(-100%); }
}

/* About Section */
.about-section {
    padding: 120px 0;
}

.about-grid-brief {
    display: grid;
    grid-template-columns: 420px 1fr;
    gap: 80px;
    align-items: flex-start;
}

.section-heading {
    font-size: clamp(32px, 5vw, 48px);
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: 30px;
    letter-spacing: -1px;
}

.bio-paragraph {
    font-size: 18px;
    color: var(--color-muted);
    margin-bottom: 25px;
    max-width: 700px;
}

.location-contact-line {
    margin-top: 50px;
    font-size: 14px;
    font-weight: 600;
    color: var(--color-muted);
    letter-spacing: 0.5px;
    text-transform: uppercase;
}

.location-contact-line a:hover {
    color: var(--color-accent);
}

@media (max-width: 1100px) {
    .about-grid-brief {
        grid-template-columns: 1fr;
        gap: 50px;
    }
    .about-photo-col {
        max-width: 400px;
    }
}

/* --------------------------------------------------------------------------
   SKILLS SECTION
   -------------------------------------------------------------------------- */

.skills-section {
    padding: 120px 0;
}

.skills-grid-columns {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 80px;
}

.skill-category-label {
    font-size: 16px;
    font-weight: 600;
    color: var(--color-muted);
    letter-spacing: 0.5px;
    margin-bottom: 20px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--color-border);
}

.skill-chips-container {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 15px;
}

.skill-chip {
    padding: 8px 18px;
    background: var(--color-card);
    border: 1px solid var(--color-border);
    border-radius: 30px;
    font-size: 14px;
    font-weight: 500;
    color: var(--color-text);
    transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    cursor: default;
    box-shadow: 0 2px 5px rgba(0,0,0,0.02);
}

.skill-chip:hover {
    transform: translateY(-4px) scale(1.03) !important;
    box-shadow: 0 10px 20px rgba(0,0,0,0.08);
    border-color: var(--color-accent);
    color: var(--color-accent);
}

@media (max-width: 900px) {
    .skills-grid-columns {
        grid-template-columns: 1fr;
        gap: 40px;
    }
}

/* --------------------------------------------------------------------------
   PROJECT CARDS
   -------------------------------------------------------------------------- */

.projects-grid-minimal {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.project-card-dark {
    background: var(--color-card);
    border-radius: 20px;
    overflow: hidden;
    color: var(--color-text);
    border: 1px solid var(--color-border);
    display: flex; flex-direction: column;
    transition: 0.5s cubic-bezier(0.25, 1, 0.5, 1);
    cursor: pointer;
}

.project-card-dark:hover {
    transform: translateY(-8px);
    box-shadow: 0 30px 60px rgba(0,0,0,0.15);
}

.card-image-box {
    aspect-ratio: 16/10;
    overflow: hidden;
}

.card-image-box img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: 0.8s cubic-bezier(0.25, 1, 0.5, 1);
}

.project-card-dark:hover .card-image-box img {
    transform: scale(1.05);
}

.card-body {
    padding: 30px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    flex-grow: 1;
}

.card-title {
    font-size: 20px;
    font-weight: 600;
    line-height: 1.3;
    margin-bottom: 5px;
}

.card-year {
    color: var(--color-muted);
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 1px;
    margin-bottom: 24px;
}

.card-links {
    display: flex;
    gap: 20px;
}

.btn-text {
    font-size: 14px;
    font-weight: 600;
    color: var(--color-accent);
    letter-spacing: 0.5px;
}

@media (max-width: 1100px) {
    .projects-grid-minimal {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 700px) {
    .projects-grid-minimal {
        grid-template-columns: 1fr;
    }
}

/* --------------------------------------------------------------------------
   TIMELINE / EDUCATION
   -------------------------------------------------------------------------- */

.timeline-vertical-wrapper {
    position: relative;
    max-width: 900px;
    margin: 0 auto;
    padding-left: 50px;
}

.timeline-line {
    position: absolute;
    left: 10px; top: 5px; bottom: 5px;
    width: 2px;
    background: var(--color-border);
}

.timeline-item {
    position: relative;
    margin-bottom: 70px;
    opacity: 0;
    transform: translateY(30px);
    transition: 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.timeline-item.active {
    opacity: 1;
    transform: translateY(0);
}

.timeline-dot {
    position: absolute;
    left: -44px; top: 6px;
    width: 12px; height: 12px;
    background: var(--color-accent);
    border-radius: 50%;
    box-shadow: 0 0 0 6px var(--color-border);
}

.entry-date {
    font-size: 11px;
    font-weight: 700;
    color: var(--color-accent);
    text-transform: uppercase;
    letter-spacing: 1.5px;
    display: block;
    margin-bottom: 6px;
}

.entry-title {
    font-size: 24px;
    font-weight: 700;
    color: var(--color-text);
}

.entry-org {
    font-size: 16px;
    font-weight: 500;
    color: var(--color-muted);
    margin-bottom: 12px;
}

.entry-desc {
    color: var(--color-muted);
    max-width: 650px;
    font-size: 16px;
}

.underline-brass {
    display: inline-block;
    border-bottom: 1.5px solid var(--color-accent);
    padding-bottom: 1px;
    margin-top: 15px;
}

@media (max-width: 768px) {
    .timeline-vertical-wrapper { padding-left: 30px; }
    .timeline-line { left: 5px; }
    .timeline-dot { left: -31px; width: 10px; height: 10px; box-shadow: 0 0 0 4px var(--color-border); }
    .entry-title { font-size: 20px; line-height: 1.3; }
    .entry-desc { font-size: 14px; margin-left: -5px; }
    .timeline-item { margin-bottom: 50px; }
}

/* --------------------------------------------------------------------------
   CONTACT
   -------------------------------------------------------------------------- */

.contact-title {
    font-size: clamp(48px, 8vw, 64px);
    font-weight: 700;
    margin-bottom: 20px;
    letter-spacing: -2px;
}

.contact-subtext {
    font-size: 20px;
    color: var(--color-muted);
    margin-bottom: 60px;
}

.contact-links-row {
    display: flex;
    justify-content: center; gap: 40px;
    margin-bottom: 30px; flex-wrap: wrap;
}

.contact-link-item {
    font-size: clamp(18px, 3vw, 24px);
    font-weight: 600;
    color: var(--color-text);
    position: relative;
    padding-bottom: 4px;
}

.animated-underline::after {
    content: '';
    position: absolute;
    bottom: 0; left: 0;
    width: 0; height: 2px;
    background: var(--color-accent);
    transition: width 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.animated-underline:hover::after {
    width: 100%;
}

/* Nav */
.nav-icon-btn {
    background: none;
    border: none;
    font-size: 18px;
    cursor: pointer;
}

.mobile-nav-toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 6px;
    background: none;
    border: none;
    width: 30px; height: 30px;
    z-index: 9002;
}

.hamburger-bar {
    width: 100%;
    height: 1.5px;
    background: var(--color-text);
    transition: 0.3s ease;
}

@media (max-width: 900px) {
    .mobile-nav-toggle { display: flex; }
    .nav-center {
        position: fixed; inset: 0;
        background: var(--color-bg);
        display: none; flex-direction: column;
        justify-content: center; align-items: center;
        z-index: 9001;
    }
    .nav-links { flex-direction: column; text-align: center; gap: 30px; }
    .nav-link { font-size: 24px; font-weight: 600; }
}

/* PARALLAX EFFECT */
.parallax { will-change: transform; }

/* FADE IN ON LOAD */
.fade-in-load { animation: fadeInLoad 1.5s cubic-bezier(0.25, 1, 0.5, 1) forwards; }
@keyframes fadeInLoad {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Accessibility */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
    .reveal-up, .zoom-in, .parallax { transform: none !important; opacity: 1 !important; }
}