/* ===========================================================
   IMKBY Messages - Cinematic Stylesheet
   =========================================================== */

/* Import font that supports polytonic Greek */
@import url('https://fonts.googleapis.com/css2?family=GFS+Didot&family=GFS+Neohellenic:wght@400;700&family=Cormorant+Garamond:wght@400;500;600;700&display=swap');

.imkby-messages-app {
    --burgundy: #6b1f3a;
    --burgundy-dk: #4a1428;
    --gold: #c9a961;
    --gold-light: #e6c989;
    --dark: #2d2416;
    --cream: #faf7f0;

    --cat-primary: var(--burgundy);
    --cat-secondary: var(--gold);
    --cat-accent: var(--gold-light);

    /* Polytonic-capable font stack */
    font-family: 'Cormorant Garamond', 'GFS Didot', 'GFS Neohellenic', 'Times New Roman', 'Georgia', 'Palatino', serif;
    color: var(--dark);
    background: var(--cream);
    min-height: 100vh;
    position: relative;
    overflow-x: hidden;
}

.imkby-messages-app * { box-sizing: border-box; }

/* =========== INTRO SPLASH =========== */
.imkby-intro {
    position: fixed;
    inset: 0;
    background: radial-gradient(ellipse at center, #2d1b4e 0%, #1a1410 100%);
    z-index: 99999;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: opacity 1.2s ease, visibility 1.2s;
}
.imkby-intro.dismissed {
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
}

.imkby-intro-content {
    text-align: center;
    color: var(--gold-light);
    z-index: 2;
    animation: introFadeIn 1.5s ease;
}

@keyframes introFadeIn {
    from { opacity: 0; transform: translateY(40px); }
    to { opacity: 1; transform: translateY(0); }
}

.imkby-intro-cross {
    font-size: 80px;
    color: var(--gold);
    margin-bottom: 20px;
    animation: crossGlow 2s ease-in-out infinite alternate;
    text-shadow: 0 0 30px rgba(201, 169, 97, 0.6);
}

@keyframes crossGlow {
    from { text-shadow: 0 0 20px rgba(201, 169, 97, 0.4); }
    to { text-shadow: 0 0 50px rgba(201, 169, 97, 0.9), 0 0 80px rgba(201, 169, 97, 0.3); }
}

.imkby-intro-text {
    font-size: 56px;
    font-weight: 700;
    margin-bottom: 16px;
    min-height: 70px;
    color: var(--gold);
    letter-spacing: 1px;
}

.imkby-typewriter::after {
    content: '|';
    animation: blink 0.7s step-end infinite;
    color: var(--gold);
    margin-left: 4px;
}

@keyframes blink {
    50% { opacity: 0; }
}

.imkby-intro-sub {
    font-size: 18px;
    opacity: 0.7;
    margin-top: 20px;
    font-style: italic;
}

.imkby-intro-sub-name {
    font-size: 16px;
    opacity: 0.5;
    margin-top: 4px;
    letter-spacing: 1px;
}

.imkby-intro-skip {
    position: absolute;
    bottom: 30px;
    right: 30px;
    color: var(--gold-light);
    opacity: 0.4;
    cursor: pointer;
    font-size: 13px;
    transition: opacity 0.3s;
    font-style: italic;
}
.imkby-intro-skip:hover { opacity: 1; }

.imkby-intro-stars {
    position: absolute;
    inset: 0;
    background-image: radial-gradient(2px 2px at 20% 30%, rgba(255,255,255,0.4), transparent),
                      radial-gradient(2px 2px at 40% 70%, rgba(255,255,255,0.3), transparent),
                      radial-gradient(2px 2px at 60% 20%, rgba(255,255,255,0.4), transparent),
                      radial-gradient(1px 1px at 80% 50%, rgba(255,255,255,0.5), transparent),
                      radial-gradient(2px 2px at 30% 80%, rgba(201,169,97,0.4), transparent),
                      radial-gradient(1px 1px at 70% 10%, rgba(255,255,255,0.3), transparent);
    background-size: 200px 200px, 250px 250px, 300px 300px, 180px 180px, 350px 350px, 220px 220px;
    animation: starFloat 60s linear infinite;
}

@keyframes starFloat {
    from { transform: translateY(0); }
    to { transform: translateY(-200px); }
}

/* =========== HERO =========== */
.imkby-hero {
    position: relative;
    min-height: 90vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background:
        radial-gradient(ellipse at 30% 20%, rgba(107, 31, 58, 0.15) 0%, transparent 50%),
        radial-gradient(ellipse at 70% 80%, rgba(201, 169, 97, 0.12) 0%, transparent 50%),
        linear-gradient(180deg, #faf7f0 0%, #f0e7d8 100%);
    overflow: hidden;
}

.imkby-particles {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
}

.imkby-hero-content {
    text-align: center;
    z-index: 2;
    max-width: 800px;
    padding: 40px 20px;
    animation: heroReveal 1.5s ease 0.3s both;
}

@keyframes heroReveal {
    from { opacity: 0; transform: translateY(30px); }
    to { opacity: 1; transform: translateY(0); }
}

.imkby-hero-ornament {
    color: var(--burgundy);
    margin-bottom: 20px;
    display: inline-block;
}

@keyframes ornSpin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

.imkby-hero-title {
    font-size: clamp(36px, 6vw, 64px);
    color: var(--burgundy);
    font-weight: 700;
    margin: 0 0 16px;
    letter-spacing: 1px;
    text-shadow: 2px 2px 4px rgba(107, 31, 58, 0.1);
}

.imkby-hero-subtitle {
    font-size: 18px;
    color: var(--dark);
    opacity: 0.8;
    margin: 0 0 24px;
}

.imkby-stat-num {
    font-size: 24px;
    color: var(--burgundy);
    font-weight: 700;
    font-family: 'Georgia', serif;
}

.imkby-hero-period {
    color: var(--gold);
    font-style: italic;
}

.imkby-hero-quote {
    font-size: 22px;
    color: var(--dark);
    font-style: italic;
    margin: 30px 0;
    line-height: 1.5;
    font-family: 'Georgia', serif;
}

.imkby-quote-mark {
    color: var(--gold);
    font-size: 36px;
    font-weight: 700;
    line-height: 0;
    position: relative;
    top: 8px;
    margin: 0 6px;
}

.imkby-hero-scroll-hint {
    margin-top: 50px;
    opacity: 0.5;
    font-size: 14px;
    letter-spacing: 3px;
    text-transform: uppercase;
}

.imkby-scroll-arrow {
    margin-top: 8px;
    animation: arrowBounce 2s ease-in-out infinite;
    color: var(--burgundy);
}

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

/* =========== SECTION TITLES =========== */
.imkby-section-title {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 20px;
    margin: 60px 0 8px;
    font-size: clamp(24px, 4vw, 36px);
    color: var(--burgundy);
    font-weight: 700;
}

.imkby-title-line {
    flex: 0 0 80px;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--gold), transparent);
}

.imkby-title-text {
    white-space: nowrap;
}

.imkby-section-sub {
    text-align: center;
    color: var(--dark);
    opacity: 0.6;
    font-style: italic;
    margin: 0 0 40px;
}

/* =========== GATES (3 Categories) =========== */
.imkby-gates {
    padding: 60px 20px;
    max-width: 1400px;
    margin: 0 auto;
}

.imkby-gates-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.imkby-gate {
    position: relative;
    display: block;
    aspect-ratio: 3 / 4;
    border-radius: 20px;
    overflow: hidden;
    text-decoration: none;
    color: var(--gate-accent);
    background: linear-gradient(160deg, var(--gate-primary), color-mix(in srgb, var(--gate-primary) 70%, black));
    box-shadow: 0 10px 40px rgba(0,0,0,0.2), inset 0 0 60px rgba(0,0,0,0.2);
    transform: translateY(0);
    transition: transform 0.5s cubic-bezier(0.34, 1.56, 0.64, 1),
                box-shadow 0.5s, filter 0.4s;
    cursor: pointer;
    animation: gateReveal 0.8s ease both;
    animation-delay: calc(var(--i, 0) * 0.15s);
}

.imkby-gates-grid .imkby-gate:nth-child(1) { --i: 0; }
.imkby-gates-grid .imkby-gate:nth-child(2) { --i: 1; }
.imkby-gates-grid .imkby-gate:nth-child(3) { --i: 2; }

@keyframes gateReveal {
    from { opacity: 0; transform: translateY(50px) scale(0.95); }
    to { opacity: 1; transform: translateY(0) scale(1); }
}

.imkby-gate:hover {
    transform: translateY(-12px) scale(1.02);
    box-shadow: 0 25px 60px rgba(0,0,0,0.35),
                0 0 80px var(--gate-secondary),
                inset 0 0 60px rgba(255,255,255,0.05);
    filter: brightness(1.1);
}

.imkby-gate-particles {
    position: absolute;
    inset: 0;
    pointer-events: none;
}

.imkby-gate-inner {
    position: relative;
    z-index: 2;
    padding: 40px 30px;
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
}

.imkby-gate-icon {
    font-size: 80px;
    margin-bottom: 20px;
    line-height: 1;
    filter: drop-shadow(0 0 20px var(--gate-secondary));
    animation: iconFloat 4s ease-in-out infinite;
    color: var(--gate-secondary);
}

@keyframes iconFloat {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

.imkby-gate-title {
    font-size: 36px;
    margin: 0 0 12px;
    color: var(--gate-secondary);
    letter-spacing: 1px;
    text-shadow: 0 2px 10px rgba(0,0,0,0.5);
}

.imkby-gate-count {
    font-size: 14px;
    opacity: 0.7;
    margin-bottom: 20px;
    text-transform: uppercase;
    letter-spacing: 2px;
}

.imkby-gate-quote {
    font-size: 14px;
    font-style: italic;
    opacity: 0.85;
    margin-bottom: 30px;
    line-height: 1.5;
    max-width: 280px;
}

.imkby-gate-arrow {
    font-size: 14px;
    text-transform: uppercase;
    letter-spacing: 3px;
    color: var(--gate-secondary);
    padding: 12px 24px;
    border: 1px solid var(--gate-secondary);
    border-radius: 50px;
    background: transparent;
    transition: all 0.3s;
    margin-top: auto;
}

.imkby-gate:hover .imkby-gate-arrow {
    background: var(--gate-secondary);
    color: var(--gate-primary);
    transform: scale(1.05);
    box-shadow: 0 0 30px var(--gate-secondary);
}

.imkby-gate-shine {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, transparent 40%, rgba(255,255,255,0.1) 50%, transparent 60%);
    background-size: 200% 200%;
    background-position: -100% -100%;
    transition: background-position 1s ease;
    pointer-events: none;
    z-index: 1;
}

.imkby-gate:hover .imkby-gate-shine {
    background-position: 200% 200%;
}

/* =========== TIMELINE =========== */
.imkby-timeline-section {
    padding: 60px 20px;
    background: linear-gradient(180deg, transparent, rgba(107, 31, 58, 0.04), transparent);
    max-width: 1400px;
    margin: 0 auto;
}

.imkby-timeline-wrap {
    position: relative;
    margin-top: 40px;
}

.imkby-timeline-axis {
    position: absolute;
    left: 50%;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(180deg, transparent, var(--gold) 10%, var(--gold) 90%, transparent);
    transform: translateX(-50%);
}

.imkby-timeline-years {
    position: relative;
}

.imkby-timeline-year {
    display: flex;
    align-items: center;
    margin-bottom: 30px;
    position: relative;
    min-height: 100px;
    opacity: 0;
    transform: translateY(30px);
    animation: timelineReveal 0.8s ease forwards;
    animation-delay: calc(var(--i, 0) * 0.05s);
}

@keyframes timelineReveal {
    to { opacity: 1; transform: translateY(0); }
}

.imkby-timeline-label {
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    background: var(--burgundy);
    color: var(--gold-light);
    padding: 6px 18px;
    border-radius: 20px;
    font-weight: 700;
    font-size: 16px;
    z-index: 2;
    box-shadow: 0 4px 15px rgba(107, 31, 58, 0.3);
    border: 2px solid var(--gold);
}

.imkby-timeline-dot {
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    width: 14px;
    height: 14px;
    background: var(--gold);
    border-radius: 50%;
    z-index: 1;
    box-shadow: 0 0 20px var(--gold);
    animation: dotPulse 2s ease-in-out infinite;
}

@keyframes dotPulse {
    0%, 100% { box-shadow: 0 0 10px var(--gold); }
    50% { box-shadow: 0 0 25px var(--gold); }
}

.imkby-timeline-cards {
    width: 100%;
    display: grid;
    grid-template-columns: 1fr 60px 1fr;
    align-items: center;
    gap: 0;
}

.imkby-timeline-card {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 16px 20px;
    background: white;
    border-radius: 12px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.08);
    text-decoration: none;
    color: var(--dark);
    border-left: 4px solid var(--card-primary);
    transition: all 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
    position: relative;
    overflow: hidden;
}

.imkby-timeline-card:nth-child(1) { grid-column: 1; justify-content: flex-end; }
.imkby-timeline-card:nth-child(2) { grid-column: 3; }
.imkby-timeline-card:nth-child(3) { grid-column: 1; justify-content: flex-end; }

.imkby-timeline-card:hover {
    transform: translateY(-4px) scale(1.04);
    box-shadow: 0 10px 30px rgba(0,0,0,0.15);
    background: var(--card-accent);
    color: var(--card-primary);
}

.imkby-tc-icon {
    font-size: 28px;
    color: var(--card-primary);
}

.imkby-tc-label {
    font-weight: 700;
    color: var(--card-primary);
}

.imkby-tc-year {
    font-size: 12px;
    opacity: 0.6;
    margin-left: auto;
}

/* =========== FINAL ORNAMENT =========== */
.imkby-final-ornament {
    text-align: center;
    padding: 60px 20px;
    color: var(--burgundy);
    opacity: 0.4;
}

.imkby-orn-cross {
    font-size: 32px;
    margin-bottom: 8px;
}

.imkby-orn-text {
    font-style: italic;
    font-size: 14px;
}

/* =========== CATEGORY PAGE =========== */
.imkby-category-page .imkby-cat-hero {
    position: relative;
    min-height: 70vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(160deg, var(--cat-primary), color-mix(in srgb, var(--cat-primary) 60%, black));
    color: var(--cat-accent);
    overflow: hidden;
}

.imkby-cat-hero-content {
    text-align: center;
    z-index: 2;
    max-width: 800px;
    padding: 60px 20px;
    animation: heroReveal 1.2s ease 0.2s both;
}

.imkby-cat-breadcrumb {
    margin-bottom: 30px;
}

.imkby-cat-breadcrumb a {
    color: var(--cat-secondary);
    text-decoration: none;
    opacity: 0.7;
    font-size: 14px;
    transition: opacity 0.3s;
}

.imkby-cat-breadcrumb a:hover { opacity: 1; }

.imkby-cat-icon-large {
    font-size: 100px;
    color: var(--cat-secondary);
    margin-bottom: 20px;
    filter: drop-shadow(0 0 30px var(--cat-secondary));
    animation: iconFloat 4s ease-in-out infinite;
}

.imkby-cat-title {
    font-size: clamp(36px, 6vw, 56px);
    color: var(--cat-secondary);
    margin: 0 0 20px;
    letter-spacing: 1px;
    text-shadow: 0 2px 10px rgba(0,0,0,0.4);
}

.imkby-cat-quote {
    font-size: 22px;
    font-style: italic;
    opacity: 0.85;
    margin: 0 0 20px;
}

.imkby-cat-desc {
    font-size: 16px;
    opacity: 0.7;
    margin: 0 0 30px;
    line-height: 1.6;
}

.imkby-cat-count {
    display: inline-block;
    padding: 10px 24px;
    background: rgba(255,255,255,0.1);
    border: 1px solid var(--cat-secondary);
    border-radius: 50px;
    color: var(--cat-secondary);
    font-size: 14px;
    text-transform: uppercase;
    letter-spacing: 2px;
}

.imkby-cat-scroll-hint {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    color: var(--cat-secondary);
    opacity: 0.6;
}

/* =========== MESSAGES GRID =========== */
.imkby-cat-grid-section {
    padding: 60px 20px;
    max-width: 1400px;
    margin: 0 auto;
}

.imkby-cat-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 20px;
}

.imkby-msg-card {
    position: relative;
    aspect-ratio: 3 / 4;
    background: linear-gradient(160deg, white, #faf7f0);
    border: 1px solid rgba(107, 31, 58, 0.1);
    border-radius: 12px;
    padding: 24px;
    text-decoration: none;
    color: var(--dark);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: space-between;
    text-align: center;
    overflow: hidden;
    transition: all 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
    box-shadow: 0 4px 12px rgba(0,0,0,0.06);
    opacity: 0;
    transform: translateY(30px);
}

.imkby-msg-card.reveal {
    animation: msgReveal 0.6s ease forwards;
}

@keyframes msgReveal {
    to { opacity: 1; transform: translateY(0); }
}

.imkby-msg-card:hover {
    transform: translateY(-8px) scale(1.03);
    box-shadow: 0 20px 40px rgba(107, 31, 58, 0.2);
    border-color: var(--cat-primary);
}

.imkby-msg-card::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, transparent 40%, var(--cat-accent) 50%, transparent 60%);
    background-size: 200% 200%;
    background-position: -100% -100%;
    transition: background-position 1s;
    opacity: 0.4;
    pointer-events: none;
}

.imkby-msg-card:hover::before {
    background-position: 200% 200%;
}

.imkby-msg-year {
    font-size: 48px;
    font-weight: 700;
    color: var(--cat-primary);
    letter-spacing: 1px;
    line-height: 1;
}

.imkby-msg-icon {
    color: var(--cat-primary);
    opacity: 0.8;
    transition: transform 0.5s, opacity 0.3s;
}

.imkby-msg-card:hover .imkby-msg-icon {
    transform: rotate(-3deg) scale(1.1);
    opacity: 1;
}

.imkby-msg-meta {
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 2px;
    color: var(--cat-primary);
    opacity: 0.7;
}

.imkby-msg-star {
    color: var(--gold);
    font-size: 16px;
}

.imkby-msg-action {
    font-size: 13px;
    color: var(--cat-primary);
    text-transform: uppercase;
    letter-spacing: 2px;
    padding-top: 16px;
    border-top: 1px solid rgba(107, 31, 58, 0.1);
    width: 100%;
    font-weight: 700;
}

/* =========== MESSAGE PAGE (PDF Reader) =========== */
.imkby-message-page {
    background: linear-gradient(180deg, var(--cat-primary) 0%, #1a1410 100%);
    color: var(--cat-accent);
    min-height: 100vh;
}

.imkby-bg-particles {
    position: fixed !important;
    inset: 0;
    z-index: 0;
    opacity: 0.4;
}

.imkby-msg-header {
    padding: 40px 20px 20px;
    text-align: center;
    position: relative;
    z-index: 2;
    animation: heroReveal 0.8s ease;
}

.imkby-msg-breadcrumb {
    font-size: 14px;
    opacity: 0.7;
    margin-bottom: 20px;
}

.imkby-msg-breadcrumb a {
    color: var(--cat-accent);
    text-decoration: none;
    transition: opacity 0.3s;
}

.imkby-msg-breadcrumb a:hover { color: var(--cat-secondary); }
.imkby-msg-breadcrumb .sep { margin: 0 8px; opacity: 0.5; }

.imkby-msg-title-block {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 24px;
}

.imkby-msg-icon-circle {
    width: 70px;
    height: 70px;
    border-radius: 50%;
    background: var(--cat-secondary);
    color: var(--cat-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 36px;
    box-shadow: 0 0 40px var(--cat-secondary);
    animation: iconFloat 3s ease-in-out infinite;
}

.imkby-msg-title {
    font-size: clamp(28px, 4vw, 42px);
    margin: 0;
    color: var(--cat-secondary);
    font-weight: 700;
}

.imkby-msg-year-big {
    display: block;
    font-size: 60%;
    opacity: 0.7;
    margin-top: 4px;
}

/* =========== PDF READER / BOOK =========== */
.imkby-pdf-stage {
    position: relative;
    padding: 40px 20px;
    z-index: 2;
    perspective: 2000px;
}

.imkby-book-wrap {
    max-width: 1200px;
    margin: 0 auto;
    position: relative;
}

.imkby-book {
    position: relative;
    transform-style: preserve-3d;
    transition: transform 0.6s;
    min-height: 800px;
}

.imkby-book-cover {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, var(--cat-primary), color-mix(in srgb, var(--cat-primary) 50%, black));
    border-radius: 8px;
    padding: 60px 40px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    box-shadow: 0 20px 60px rgba(0,0,0,0.4),
                inset 0 0 100px rgba(0,0,0,0.3),
                -10px 0 30px rgba(0,0,0,0.2);
    transform-origin: left center;
    transition: transform 1.5s cubic-bezier(0.86, 0, 0.07, 1);
    z-index: 2;
    backface-visibility: hidden;
}

.imkby-book.opened .imkby-book-cover {
    transform: rotateY(-180deg);
}

.imkby-book-cover::before {
    content: '';
    position: absolute;
    inset: 20px;
    border: 2px solid var(--cat-secondary);
    border-radius: 4px;
    opacity: 0.5;
    pointer-events: none;
}

.imkby-book-cover::after {
    content: '';
    position: absolute;
    left: 0;
    top: 10%;
    bottom: 10%;
    width: 30px;
    background: linear-gradient(90deg, rgba(0,0,0,0.4), transparent);
    border-radius: 0 4px 4px 0;
}

.imkby-cover-ornament {
    color: var(--cat-secondary);
    margin-bottom: 20px;
}

.imkby-cover-title {
    font-size: 24px;
    color: var(--cat-secondary);
    opacity: 0.7;
    text-transform: uppercase;
    letter-spacing: 6px;
    margin-bottom: 10px;
}

.imkby-cover-cat {
    font-size: 48px;
    color: var(--cat-secondary);
    font-weight: 700;
    margin-bottom: 16px;
    text-shadow: 0 2px 10px rgba(0,0,0,0.5);
}

.imkby-cover-year {
    font-size: 96px;
    color: var(--cat-secondary);
    font-weight: 700;
    line-height: 1;
    margin-bottom: 30px;
    text-shadow: 0 4px 20px rgba(0,0,0,0.5);
}

.imkby-cover-quote {
    font-size: 18px;
    font-style: italic;
    opacity: 0.7;
    margin-bottom: 40px;
    max-width: 400px;
    line-height: 1.5;
}

.imkby-cover-open {
    background: var(--cat-secondary);
    color: var(--cat-primary);
    border: none;
    padding: 16px 40px;
    font-size: 16px;
    font-weight: 700;
    letter-spacing: 2px;
    text-transform: uppercase;
    border-radius: 50px;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 12px;
    transition: all 0.3s;
    box-shadow: 0 10px 30px rgba(0,0,0,0.3);
    font-family: inherit;
}

.imkby-cover-open:hover {
    transform: scale(1.05);
    box-shadow: 0 15px 40px rgba(0,0,0,0.4), 0 0 30px var(--cat-secondary);
}

.imkby-cover-arrow {
    transition: transform 0.3s;
}

.imkby-cover-open:hover .imkby-cover-arrow {
    transform: translateX(6px);
}

.imkby-book-inside {
    position: relative;
    background: white;
    color: var(--dark);
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 20px 60px rgba(0,0,0,0.4);
    min-height: 800px;
    display: flex;
    flex-direction: column;
    opacity: 0;
    transition: opacity 0.5s 1s;
}

.imkby-book.opened .imkby-book-inside {
    opacity: 1;
}

.imkby-pdf-toolbar {
    background: var(--cat-primary);
    color: var(--cat-accent);
    padding: 12px 20px;
    display: flex;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
}

.imkby-toolbar-btn {
    background: rgba(255,255,255,0.1);
    color: var(--cat-accent);
    border: 1px solid rgba(255,255,255,0.2);
    padding: 8px 14px;
    border-radius: 6px;
    cursor: pointer;
    font-size: 14px;
    transition: all 0.2s;
    text-decoration: none;
    font-family: inherit;
}

.imkby-toolbar-btn:hover {
    background: var(--cat-secondary);
    color: var(--cat-primary);
    border-color: var(--cat-secondary);
}

.imkby-toolbar-divider {
    width: 1px;
    height: 24px;
    background: rgba(255,255,255,0.2);
    margin: 0 4px;
}

.imkby-zoom-level {
    font-size: 13px;
    min-width: 50px;
    text-align: center;
    opacity: 0.8;
}

.imkby-pdf-iframe {
    flex: 1;
    border: none;
    width: 100%;
    min-height: 700px;
    background: #f5f5f0;
}

/* =========== NAVIGATION =========== */
.imkby-msg-nav {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    gap: 20px;
    max-width: 1200px;
    margin: 40px auto;
    padding: 0 20px;
    position: relative;
    z-index: 2;
}

.imkby-nav-prev, .imkby-nav-next, .imkby-nav-list {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 16px 24px;
    background: rgba(255,255,255,0.05);
    border: 1px solid rgba(201, 169, 97, 0.3);
    border-radius: 50px;
    text-decoration: none;
    color: var(--cat-accent);
    transition: all 0.3s;
    backdrop-filter: blur(10px);
}

.imkby-nav-prev:hover, .imkby-nav-next:hover, .imkby-nav-list:hover {
    background: rgba(201, 169, 97, 0.2);
    border-color: var(--cat-secondary);
    transform: translateY(-2px);
}

.imkby-nav-next {
    justify-content: flex-end;
}

.imkby-nav-arrow {
    font-size: 20px;
    color: var(--cat-secondary);
}

.imkby-nav-info {
    display: flex;
    flex-direction: column;
}

.imkby-nav-label {
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 2px;
    opacity: 0.6;
}

.imkby-nav-detail {
    font-size: 16px;
    font-weight: 700;
    color: var(--cat-secondary);
}

.imkby-nav-icon {
    font-size: 20px;
    color: var(--cat-secondary);
}

/* =========== SAME YEAR =========== */
.imkby-same-year {
    padding: 40px 20px 80px;
    max-width: 1200px;
    margin: 0 auto;
    position: relative;
    z-index: 2;
}

.imkby-related-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin-top: 30px;
}

.imkby-related-card {
    padding: 24px 20px;
    background: linear-gradient(160deg, var(--rel-primary), color-mix(in srgb, var(--rel-primary) 60%, black));
    border-radius: 12px;
    text-decoration: none;
    color: var(--rel-accent);
    text-align: center;
    transition: all 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
    box-shadow: 0 4px 15px rgba(0,0,0,0.2);
}

.imkby-related-card:hover {
    transform: translateY(-6px) scale(1.03);
    box-shadow: 0 15px 40px rgba(0,0,0,0.3);
}

.imkby-rel-icon {
    font-size: 36px;
    margin-bottom: 12px;
    color: var(--rel-accent);
}

.imkby-rel-cat {
    font-size: 14px;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    opacity: 0.8;
    margin-bottom: 8px;
}

.imkby-rel-year {
    font-size: 28px;
    font-weight: 700;
    color: var(--rel-accent);
}

/* =========== RESPONSIVE =========== */
@media (max-width: 768px) {
    .imkby-hero-title { font-size: 36px; }
    .imkby-gates-grid { grid-template-columns: 1fr; gap: 20px; }
    .imkby-gate { aspect-ratio: 5 / 4; }
    .imkby-gate-icon { font-size: 60px; }
    .imkby-gate-title { font-size: 28px; }

    .imkby-timeline-axis { left: 30px; }
    .imkby-timeline-label { left: 30px; }
    .imkby-timeline-dot { left: 30px; }
    .imkby-timeline-cards { grid-template-columns: 1fr; padding-left: 60px; }
    .imkby-timeline-card:nth-child(1),
    .imkby-timeline-card:nth-child(2),
    .imkby-timeline-card:nth-child(3) { grid-column: 1; justify-content: flex-start; }

    .imkby-cat-grid { grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); }
    .imkby-msg-year { font-size: 36px; }

    .imkby-msg-nav { grid-template-columns: 1fr; }
    .imkby-cover-year { font-size: 60px; }
    .imkby-msg-title-block { flex-direction: column; gap: 12px; }
    .imkby-pdf-iframe { min-height: 500px; }
}