/*
=================================================================
  TOMORO COFFEE BANGKA - SCROLL ENHANCEMENTS
  Version: 1.0.0
  Author: Professional Web Developer
  Description: Advanced Scroll UI Components
=================================================================
*/

/* =================================================================
   TABLE OF CONTENTS
   =================================================================
   1. CSS Variables
   2. Scroll Progress Bar
   3. Section Navigation Dots
   4. Reading Progress Indicator
   5. Section Indicator
   6. Scroll Hint Animation
   7. Current Section Label
   8. Mini Map Navigation
   9. Scroll Percentage Badge
   10. Animations & Transitions
   11. Responsive Styles
   12. Dark Mode Support
================================================================= */

/* =================================================================
   1. CSS VARIABLES
================================================================= */
:root {
    /* Scroll Enhancement Colors */
    --scroll-primary: #8B4513;
    --scroll-secondary: #D4A574;
    --scroll-bg: rgba(139, 69, 19, 0.1);
    --scroll-track: rgba(0, 0, 0, 0.05);
    --scroll-text: #495057;
    --scroll-white: #FFFFFF;
    --scroll-dark: #1a1a1a;
    
    /* Sizes */
    --progress-height: 4px;
    --dot-size: 12px;
    --dot-size-active: 14px;
    --indicator-width: 200px;
    
    /* Transitions */
    --scroll-transition: 300ms cubic-bezier(0.4, 0, 0.2, 1);
    --scroll-transition-slow: 500ms cubic-bezier(0.4, 0, 0.2, 1);
    
    /* Z-index layers */
    --z-scroll-progress: 9990;
    --z-scroll-dots: 9980;
    --z-scroll-indicator: 9970;
}

/* =================================================================
   2. SCROLL PROGRESS BAR
================================================================= */

/* Main Progress Bar (Top) */
.scroll-progress-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: var(--progress-height);
    background: var(--scroll-track);
    z-index: var(--z-scroll-progress);
    overflow: hidden;
}

.scroll-progress-bar {
    height: 100%;
    width: 0%;
    background: linear-gradient(90deg, 
        var(--scroll-primary) 0%, 
        var(--scroll-secondary) 50%,
        var(--scroll-primary) 100%
    );
    background-size: 200% 100%;
    animation: gradientMove 3s ease infinite;
    transition: width 0.1s ease-out;
    position: relative;
}

.scroll-progress-bar::after {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 100px;
    height: 100%;
    background: linear-gradient(90deg, 
        transparent, 
        rgba(255, 255, 255, 0.4),
        transparent
    );
    animation: shimmer 2s infinite;
}

@keyframes gradientMove {
    0%, 100% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
}

@keyframes shimmer {
    0% { transform: translateX(-100%); }
    100% { transform: translateX(100%); }
}

/* Progress Bar Glow Effect */
.scroll-progress-bar.glowing {
    box-shadow: 0 0 10px var(--scroll-primary),
                0 0 20px rgba(139, 69, 19, 0.3);
}

/* =================================================================
   3. SECTION NAVIGATION DOTS
================================================================= */

/* Dots Container */
.section-nav-dots {
    position: fixed;
    right: 30px;
    top: 50%;
    transform: translateY(-50%);
    z-index: var(--z-scroll-dots);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 20px;
    padding: 20px 10px;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-radius: 30px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1),
                0 0 0 1px rgba(139, 69, 19, 0.1);
    opacity: 0;
    visibility: hidden;
    transition: var(--scroll-transition);
}

.section-nav-dots.visible {
    opacity: 1;
    visibility: visible;
}

/* Individual Dot */
.nav-dot {
    position: relative;
    width: var(--dot-size);
    height: var(--dot-size);
    border-radius: 50%;
    background: var(--scroll-track);
    border: 2px solid transparent;
    cursor: pointer;
    transition: var(--scroll-transition);
    display: flex;
    align-items: center;
    justify-content: center;
}

.nav-dot::before {
    content: '';
    position: absolute;
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--scroll-primary);
    transform: scale(0);
    transition: var(--scroll-transition);
}

/* Dot States */
.nav-dot:hover {
    background: var(--scroll-bg);
    border-color: var(--scroll-primary);
    transform: scale(1.2);
}

.nav-dot.active {
    width: var(--dot-size-active);
    height: var(--dot-size-active);
    background: var(--scroll-primary);
    border-color: var(--scroll-primary);
    box-shadow: 0 0 0 4px rgba(139, 69, 19, 0.2);
}

.nav-dot.active::before {
    background: var(--scroll-white);
    transform: scale(1);
}

.nav-dot.passed {
    background: var(--scroll-secondary);
    border-color: var(--scroll-secondary);
}

.nav-dot.passed::before {
    background: var(--scroll-white);
    transform: scale(1);
}

/* Dot Tooltip */
.nav-dot-tooltip {
    position: absolute;
    right: calc(100% + 15px);
    top: 50%;
    transform: translateY(-50%) translateX(10px);
    padding: 8px 16px;
    background: var(--scroll-dark);
    color: var(--scroll-white);
    font-size: 13px;
    font-weight: 500;
    white-space: nowrap;
    border-radius: 8px;
    opacity: 0;
    visibility: hidden;
    transition: var(--scroll-transition);
    pointer-events: none;
}

.nav-dot-tooltip::after {
    content: '';
    position: absolute;
    left: 100%;
    top: 50%;
    transform: translateY(-50%);
    border: 6px solid transparent;
    border-left-color: var(--scroll-dark);
}

.nav-dot:hover .nav-dot-tooltip {
    opacity: 1;
    visibility: visible;
    transform: translateY(-50%) translateX(0);
}

/* Dot Progress Line */
.nav-dots-line {
    position: absolute;
    left: 50%;
    top: 20px;
    bottom: 20px;
    width: 2px;
    background: var(--scroll-track);
    transform: translateX(-50%);
    z-index: -1;
    border-radius: 1px;
}

.nav-dots-line-progress {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 0%;
    background: linear-gradient(180deg, var(--scroll-primary), var(--scroll-secondary));
    border-radius: 1px;
    transition: height 0.3s ease;
}

/* =================================================================
   4. READING PROGRESS INDICATOR
================================================================= */

/* Reading Time Badge */
.reading-progress-badge {
    position: fixed;
    bottom: 100px;
    left: 30px;
    z-index: var(--z-scroll-indicator);
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 20px;
    background: var(--scroll-white);
    border-radius: 50px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.15);
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: var(--scroll-transition);
}

.reading-progress-badge.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

/* Circular Progress */
.reading-progress-circle {
    position: relative;
    width: 44px;
    height: 44px;
}

.reading-progress-circle svg {
    transform: rotate(-90deg);
    width: 100%;
    height: 100%;
}

.reading-progress-circle .circle-bg {
    fill: none;
    stroke: var(--scroll-track);
    stroke-width: 4;
}

.reading-progress-circle .circle-progress {
    fill: none;
    stroke: var(--scroll-primary);
    stroke-width: 4;
    stroke-linecap: round;
    stroke-dasharray: 126;
    stroke-dashoffset: 126;
    transition: stroke-dashoffset 0.3s ease;
}

.reading-progress-percentage {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 11px;
    font-weight: 700;
    color: var(--scroll-primary);
}

/* Reading Info */
.reading-info {
    display: flex;
    flex-direction: column;
}

.reading-info-label {
    font-size: 11px;
    color: var(--scroll-text);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    opacity: 0.7;
}

.reading-info-time {
    font-size: 14px;
    font-weight: 600;
    color: var(--scroll-dark);
}

/* =================================================================
   5. SECTION INDICATOR
================================================================= */

/* Current Section Indicator */
.current-section-indicator {
    position: fixed;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%) translateY(20px);
    z-index: var(--z-scroll-indicator);
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 24px;
    background: rgba(26, 26, 26, 0.9);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-radius: 50px;
    opacity: 0;
    visibility: hidden;
    transition: var(--scroll-transition);
}

.current-section-indicator.visible {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(0);
}

.section-indicator-icon {
    width: 32px;
    height: 32px;
    background: var(--scroll-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    color: var(--scroll-white);
}

.section-indicator-text {
    display: flex;
    flex-direction: column;
}

.section-indicator-label {
    font-size: 10px;
    color: rgba(255, 255, 255, 0.6);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.section-indicator-title {
    font-size: 14px;
    font-weight: 600;
    color: var(--scroll-white);
}

/* Section Indicator Progress */
.section-indicator-progress {
    width: 60px;
    height: 4px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 2px;
    overflow: hidden;
    margin-left: 12px;
}

.section-indicator-progress-bar {
    height: 100%;
    background: var(--scroll-secondary);
    border-radius: 2px;
    transition: width 0.3s ease;
}

/* =================================================================
   6. SCROLL HINT ANIMATION
================================================================= */

/* Scroll Down Hint */
.scroll-hint {
    position: fixed;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    z-index: var(--z-scroll-indicator);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    opacity: 1;
    transition: var(--scroll-transition-slow);
    cursor: pointer;
}

.scroll-hint.hidden {
    opacity: 0;
    visibility: hidden;
    transform: translateX(-50%) translateY(20px);
}

.scroll-hint-mouse {
    width: 26px;
    height: 42px;
    border: 2px solid var(--scroll-primary);
    border-radius: 13px;
    position: relative;
    display: flex;
    justify-content: center;
}

.scroll-hint-wheel {
    width: 4px;
    height: 8px;
    background: var(--scroll-primary);
    border-radius: 2px;
    margin-top: 8px;
    animation: scrollWheel 2s ease-in-out infinite;
}

@keyframes scrollWheel {
    0%, 100% {
        opacity: 1;
        transform: translateY(0);
    }
    50% {
        opacity: 0.3;
        transform: translateY(12px);
    }
}

.scroll-hint-text {
    font-size: 12px;
    color: var(--scroll-text);
    text-transform: uppercase;
    letter-spacing: 2px;
    font-weight: 500;
}

.scroll-hint-arrows {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2px;
}

.scroll-hint-arrows span {
    display: block;
    width: 10px;
    height: 10px;
    border-right: 2px solid var(--scroll-primary);
    border-bottom: 2px solid var(--scroll-primary);
    transform: rotate(45deg);
    animation: scrollArrows 2s ease-in-out infinite;
}

.scroll-hint-arrows span:nth-child(2) {
    animation-delay: 0.2s;
}

.scroll-hint-arrows span:nth-child(3) {
    animation-delay: 0.4s;
}

@keyframes scrollArrows {
    0%, 100% {
        opacity: 0;
        transform: rotate(45deg) translateY(-5px);
    }
    50% {
        opacity: 1;
        transform: rotate(45deg) translateY(0);
    }
}

/* =================================================================
   7. CURRENT SECTION LABEL
================================================================= */

/* Floating Section Label */
.floating-section-label {
    position: fixed;
    left: 30px;
    top: 50%;
    transform: translateY(-50%) rotate(-90deg);
    transform-origin: left center;
    z-index: var(--z-scroll-indicator);
    display: flex;
    align-items: center;
    gap: 15px;
    opacity: 0;
    visibility: hidden;
    transition: var(--scroll-transition);
}

.floating-section-label.visible {
    opacity: 1;
    visibility: visible;
}

.section-label-line {
    width: 50px;
    height: 2px;
    background: var(--scroll-primary);
}

.section-label-text {
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 3px;
    color: var(--scroll-primary);
    white-space: nowrap;
}

.section-label-number {
    font-family: 'Playfair Display', serif;
    font-size: 14px;
    font-weight: 700;
    color: var(--scroll-secondary);
    margin-right: 10px;
}

/* =================================================================
   8. MINI MAP NAVIGATION
================================================================= */

/* Mini Map Container */
.scroll-minimap {
    position: fixed;
    right: 80px;
    top: 50%;
    transform: translateY(-50%);
    z-index: var(--z-scroll-dots);
    width: 4px;
    height: 200px;
    background: var(--scroll-track);
    border-radius: 2px;
    opacity: 0;
    visibility: hidden;
    transition: var(--scroll-transition);
}

.scroll-minimap.visible {
    opacity: 1;
    visibility: visible;
}

.minimap-viewport {
    position: absolute;
    left: -3px;
    width: 10px;
    background: var(--scroll-primary);
    border-radius: 5px;
    transition: top 0.1s ease, height 0.1s ease;
    cursor: grab;
}

.minimap-viewport:active {
    cursor: grabbing;
}

.minimap-sections {
    position: absolute;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
}

.minimap-section {
    position: absolute;
    left: 0;
    width: 100%;
    background: rgba(139, 69, 19, 0.3);
    border-radius: 2px;
    transition: background 0.3s ease;
}

.minimap-section.active {
    background: var(--scroll-secondary);
}

/* =================================================================
   9. SCROLL PERCENTAGE BADGE
================================================================= */

/* Percentage Badge */
.scroll-percentage-badge {
    position: fixed;
    top: 20px;
    right: 30px;
    z-index: var(--z-scroll-indicator);
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    background: var(--scroll-white);
    border-radius: 50px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: var(--scroll-transition);
}

.scroll-percentage-badge.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.percentage-icon {
    width: 24px;
    height: 24px;
    background: var(--scroll-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 10px;
    color: var(--scroll-white);
}

.percentage-value {
    font-size: 14px;
    font-weight: 700;
    color: var(--scroll-dark);
}

.percentage-value span {
    font-size: 11px;
    font-weight: 400;
    color: var(--scroll-text);
}

/* =================================================================
   10. ANIMATIONS & TRANSITIONS
================================================================= */

/* Pulse Animation */
@keyframes pulse {
    0%, 100% {
        box-shadow: 0 0 0 0 rgba(139, 69, 19, 0.4);
    }
    50% {
        box-shadow: 0 0 0 10px rgba(139, 69, 19, 0);
    }
}

.nav-dot.active {
    animation: pulse 2s ease-in-out infinite;
}

/* Fade In Up */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Bounce */
@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateY(0);
    }
    40% {
        transform: translateY(-10px);
    }
    60% {
        transform: translateY(-5px);
    }
}

/* Smooth section transitions */
html {
    scroll-behavior: smooth;
}

/* Custom easing for scroll */
@supports (scroll-behavior: smooth) {
    html {
        scroll-behavior: smooth;
    }
}

/* =================================================================
   11. RESPONSIVE STYLES
================================================================= */

/* Tablet */
@media (max-width: 991px) {
    .section-nav-dots {
        right: 15px;
        padding: 15px 8px;
        gap: 15px;
    }
    
    .nav-dot {
        width: 10px;
        height: 10px;
    }
    
    .nav-dot.active {
        width: 12px;
        height: 12px;
    }
    
    .nav-dot-tooltip {
        display: none;
    }
    
    .reading-progress-badge {
        left: 15px;
        padding: 10px 15px;
    }
    
    .floating-section-label {
        display: none;
    }
    
    .scroll-minimap {
        display: none;
    }
    
    .current-section-indicator {
        padding: 10px 20px;
    }
    
    .section-indicator-progress {
        display: none;
    }
}

/* Mobile */
@media (max-width: 767px) {
    .section-nav-dots {
        right: 10px;
        padding: 12px 6px;
        gap: 12px;
        border-radius: 20px;
    }
    
    .nav-dot {
        width: 8px;
        height: 8px;
    }
    
    .nav-dot.active {
        width: 10px;
        height: 10px;
    }
    
    /* Hide on smaller devices to avoid overlapping content */
    .reading-progress-badge {
        display: none;
    }
    
    .current-section-indicator {
        display: none;
    }
    
    .section-indicator-icon {
        width: 28px;
        height: 28px;
        font-size: 12px;
    }
    
    .scroll-hint {
        bottom: 30px;
    }
    
    .scroll-hint-mouse {
        width: 22px;
        height: 36px;
    }
    
    .scroll-hint-text {
        font-size: 10px;
    }
    
    .scroll-percentage-badge {
        top: 70px;
        right: 15px;
        padding: 6px 12px;
    }
    
    .percentage-icon {
        width: 20px;
        height: 20px;
        font-size: 9px;
    }
    
    .percentage-value {
        font-size: 12px;
    }
}

/* Small Mobile */
@media (max-width: 375px) {
    .section-nav-dots {
        right: 5px;
        padding: 10px 5px;
        gap: 10px;
    }
    
    .nav-dot {
        width: 6px;
        height: 6px;
    }
    
    .nav-dot.active {
        width: 8px;
        height: 8px;
    }
    
    .reading-progress-badge {
        display: none;
    }
    
    .current-section-indicator {
        width: calc(100% - 20px);
        left: 10px;
        transform: translateY(20px);
        justify-content: center;
    }
    
    .current-section-indicator.visible {
        transform: translateY(0);
    }
}

/* Landscape Mobile */
@media (max-height: 500px) and (orientation: landscape) {
    .section-nav-dots {
        gap: 8px;
        padding: 10px 6px;
    }
    
    .scroll-hint {
        display: none;
    }
    
    .current-section-indicator {
        display: none;
    }
}

/* =================================================================
   12. DARK MODE SUPPORT
================================================================= */

@media (prefers-color-scheme: dark) {
    :root {
        --scroll-track: rgba(255, 255, 255, 0.1);
        --scroll-text: #adb5bd;
    }
    
    .section-nav-dots {
        background: rgba(30, 30, 30, 0.95);
        box-shadow: 0 10px 40px rgba(0, 0, 0, 0.3),
                    0 0 0 1px rgba(255, 255, 255, 0.1);
    }
    
    .reading-progress-badge {
        background: var(--scroll-dark);
    }
    
    .reading-info-label {
        color: rgba(255, 255, 255, 0.6);
    }
    
    .reading-info-time {
        color: var(--scroll-white);
    }
    
    .scroll-percentage-badge {
        background: var(--scroll-dark);
    }
    
    .percentage-value {
        color: var(--scroll-white);
    }
    
    .percentage-value span {
        color: rgba(255, 255, 255, 0.6);
    }
    
    .scroll-hint-text {
        color: rgba(255, 255, 255, 0.7);
    }
}

/* Forced Dark Mode Class */
body.dark-mode {
    --scroll-track: rgba(255, 255, 255, 0.1);
    --scroll-text: #adb5bd;
}

body.dark-mode .section-nav-dots {
    background: rgba(30, 30, 30, 0.95);
}

body.dark-mode .reading-progress-badge,
body.dark-mode .scroll-percentage-badge {
    background: var(--scroll-dark);
    color: var(--scroll-white);
}

/* =================================================================
   REDUCED MOTION
================================================================= */

@media (prefers-reduced-motion: reduce) {
    .scroll-progress-bar,
    .nav-dot,
    .reading-progress-badge,
    .current-section-indicator,
    .scroll-hint,
    .section-nav-dots {
        transition: none;
        animation: none;
    }
    
    .scroll-hint-wheel,
    .scroll-hint-arrows span {
        animation: none;
    }
    
    html {
        scroll-behavior: auto;
    }
}

/* =================================================================
   PRINT STYLES
================================================================= */

@media print {
    .scroll-progress-container,
    .section-nav-dots,
    .reading-progress-badge,
    .current-section-indicator,
    .scroll-hint,
    .floating-section-label,
    .scroll-minimap,
    .scroll-percentage-badge {
        display: none !important;
    }
}