/* ================================
   FileBox by BlackFish
   Modern, Clean, Minimal Design
   ================================ */

/* CSS Variables */
:root {
    /* Colors */
    --color-white: #ffffff;
    --color-black: #000000;
    --color-gray-50: #fafafa;
    --color-gray-100: #f5f5f5;
    --color-gray-200: #e5e5e5;
    --color-gray-300: #d4d4d4;
    --color-gray-400: #a3a3a3;
    --color-gray-500: #737373;
    --color-gray-600: #525252;
    --color-gray-700: #404040;
    --color-gray-800: #262626;
    --color-gray-900: #171717;
    
    /* Semantic Colors */
    --color-success: #22c55e;
    --color-success-light: #dcfce7;
    --color-warning: #f59e0b;
    --color-warning-light: #fef3c7;
    --color-error: #ef4444;
    --color-error-light: #fee2e2;
    
    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 1.875rem;
    --font-size-4xl: 2.25rem;
    --font-size-5xl: 3rem;
    --font-size-6xl: 3.75rem;
    
    /* Spacing */
    --spacing-1: 0.25rem;
    --spacing-2: 0.5rem;
    --spacing-3: 0.75rem;
    --spacing-4: 1rem;
    --spacing-5: 1.25rem;
    --spacing-6: 1.5rem;
    --spacing-8: 2rem;
    --spacing-10: 2.5rem;
    --spacing-12: 3rem;
    --spacing-16: 4rem;
    --spacing-20: 5rem;
    --spacing-24: 6rem;
    
    /* Borders */
    --border-radius-sm: 0.25rem;
    --border-radius-md: 0.5rem;
    --border-radius-lg: 0.75rem;
    --border-radius-xl: 1rem;
    --border-radius-2xl: 1.5rem;
    --border-radius-full: 9999px;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
    
    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-normal: 250ms ease;
    --transition-slow: 350ms ease;
    
    /* Z-index */
    --z-header: 100;
    --z-modal: 200;
}

::selection {
  background: black;
  color: white;
}

::-moz-selection {
  background: black;
  color: white;
}

/* Reset & Base */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: var(--color-gray-900);
    background-color: var(--color-white);
}

a {
    color: inherit;
    text-decoration: none;
}

button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    background: none;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

input, select {
    font-family: inherit;
    font-size: inherit;
}

/* ================================
   HEADER
   ================================ */
.header {
    position: sticky;
    top: 0;
    z-index: var(--z-header);
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--color-gray-200);
    transition: box-shadow var(--transition-normal);
}

.header.scrolled {
    box-shadow: var(--shadow-md);
}

.header-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--spacing-4) var(--spacing-6);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo-link {
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
}

.logo-img {
    width: 40px;
    height: 40px;
    object-fit: contain;
}

.logo-text {
    display: flex;
    flex-direction: column;
}

.logo-name {
    font-size: var(--font-size-lg);
    font-weight: 700;
    color: var(--color-gray-900);
    line-height: 1.2;
}

.logo-tagline {
    font-size: var(--font-size-xs);
    color: var(--color-gray-500);
    line-height: 1.2;
}

.nav-desktop {
    display: flex;
    align-items: center;
    gap: var(--spacing-8);
}

.nav-link {
    font-size: clamp(0.85rem, 0.9vw, 1rem);
    font-weight: dark;
    color: var(--color-gray-600);
    padding: var(--spacing-2) 0;
    position: relative;
    transition: color var(--transition-fast);
    font-family: Verdana, Geneva, Tahoma, sans-serif;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--color-gray-900);
    transition: width var(--transition-normal);
}

.nav-link:hover,
.nav-link.active {
    color: var(--color-gray-900);
}

.nav-link.active::after {
    width: 100%;
}

/* Hamburger Menu */
.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: var(--spacing-2);
}

.hamburger-line {
    width: 24px;
    height: 2px;
    background-color: var(--color-gray-900);
    transition: transform var(--transition-normal), opacity var(--transition-normal);
}

.hamburger.active .hamburger-line:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}

.hamburger.active .hamburger-line:nth-child(2) {
    opacity: 0;
}

.hamburger.active .hamburger-line:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

/* Mobile Navigation */
.nav-mobile {
    display: none;
    flex-direction: column;
    padding: var(--spacing-4) var(--spacing-6);
    background-color: var(--color-white);
    border-top: 1px solid var(--color-gray-200);
}

.nav-mobile.active {
    display: flex;
}

.nav-link-mobile {
    padding: var(--spacing-3) 0;
    font-size: var(--font-size-base);
    font-weight: 500;
    color: var(--color-gray-700);
    border-bottom: 1px solid var(--color-gray-100);
    transition: color var(--transition-fast);
}

.nav-link-mobile:hover {
    color: var(--color-gray-900);
}

@media (max-width: 768px) {
    .nav-desktop {
        display: none;
    }
    
    .hamburger {
        display: flex;
    }
}

/* ================================
   HERO SECTION
   ================================ */
.hero {
    padding: var(--spacing-20) var(--spacing-6);
    background-color: var(--color-white);
}

.hero-container {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-2);
    padding: var(--spacing-2) var(--spacing-4);
    background-color: var(--color-white);
    border: 1px solid var(--color-gray-200);
    border-radius: var(--border-radius-full);
    font-size: var(--font-size-sm);
    color: var(--color-gray-600);
    margin-bottom: var(--spacing-8);
}

.badge-icon {
    width: 16px;
    height: 16px;
    color: var(--color-gray-500);
}

.badge-dot {
    width: 4px;
    height: 4px;
    background-color: var(--color-gray-300);
    border-radius: 50%;
}

.hero-headline {
    font-size: clamp(2rem, 5vw, 4rem);
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: var(--spacing-6);
}

.headline-dark {
    display: block;
    color: var(--color-gray-900);
}

.headline-light {
    display: block;
    color: var(--color-gray-400);
}

.hero-subtext {
    font-size: var(--font-size-lg);
    color: var(--color-gray-500);
    max-width: 600px;
    margin: 0 auto var(--spacing-10);
    line-height: 1.7;
}

.hero-buttons {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-4);
    flex-wrap: wrap;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-2);
    padding: var(--spacing-3) var(--spacing-6);
    font-size: var(--font-size-base);
    font-weight: 600;
    border-radius: var(--border-radius-lg);
    transition: all var(--transition-fast);
}

.btn-primary {
    background-color: var(--color-gray-900);
    color: var(--color-white);
}

.btn-primary:hover {
    background-color: var(--color-gray-800);
    transform: translateY(-1px);
}

.btn-secondary {
    background-color: var(--color-white);
    color: var(--color-gray-900);
    border: 1px solid var(--color-gray-300);
}

.btn-secondary:hover {
    background-color: var(--color-gray-50);
    border-color: var(--color-gray-400);
}

.btn-ghost {
    color: var(--color-gray-600);
    padding: var(--spacing-2) var(--spacing-4);
}

.btn-ghost:hover {
    color: var(--color-gray-900);
    background-color: var(--color-gray-100);
}

.btn-full {
    width: 100%;
}

.btn-icon {
    width: 18px;
    height: 18px;
}

.btn-icon-right {
    width: 16px;
    height: 16px;
}

@media (max-width: 640px) {
    .hero {
        padding: var(--spacing-12) var(--spacing-4);
    }
    
    .hero-headline {
        font-size: var(--font-size-4xl);
    }
    
    .hero-subtext {
        font-size: var(--font-size-base);
    }
    
    .hero-buttons {
        flex-direction: column;
        width: 100%;
    }
    
    .btn {
        width: 100%;
    }
}

/* ================================
   INFINITE MARQUEE
   ================================ */
.marquee-section {
    position: relative;
    overflow: hidden;
    border-top: 1px solid var(--color-gray-100);
    border-bottom: 1px solid var(--color-gray-100);
    background-color: var(--color-gray-50);
    padding: var(--spacing-4) 0;
}

.marquee-fade-left,
.marquee-fade-right {
    position: absolute;
    top: 0;
    bottom: 0;
    width: 80px;
    z-index: 2;
    pointer-events: none;
}

.marquee-fade-left {
    left: 0;
    background: linear-gradient(to right, var(--color-gray-50), transparent);
}

.marquee-fade-right {
    right: 0;
    background: linear-gradient(to left, var(--color-gray-50), transparent);
}

.marquee-track {
    display: flex;
    width: max-content;
}

.marquee-track:hover .marquee-content {
    animation-play-state: paused;
}

.marquee-content {
    display: flex;
    align-items: center;
    gap: var(--spacing-6);
    padding-right: var(--spacing-6);
    animation: marquee-scroll 28s linear infinite;
    white-space: nowrap;
}

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

.marquee-item {
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--color-gray-500);
    letter-spacing: 0.02em;
    text-transform: uppercase;
}

.marquee-dot {
    width: 4px;
    height: 4px;
    background-color: var(--color-gray-300);
    border-radius: 50%;
    flex-shrink: 0;
}

/* ================================
   TOOLS SECTION
   ================================ */
.tools {
    padding: var(--spacing-20) var(--spacing-6);
    background-color: var(--color-gray-50);
}

.tools-container {
    max-width: 800px;
    margin: 0 auto;
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-12);
}

.section-badge {
    display: inline-block;
    padding: var(--spacing-1) var(--spacing-3);
    background-color: var(--color-gray-900);
    color: var(--color-white);
    font-size: var(--font-size-xs);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border-radius: var(--border-radius-full);
    margin-bottom: var(--spacing-4);
}

.section-title {
    font-size: var(--font-size-3xl);
    font-weight: 700;
    color: var(--color-gray-900);
    margin-bottom: var(--spacing-3);
}

.section-subtitle {
    font-size: var(--font-size-lg);
    color: var(--color-gray-500);
}

/* Tool Tabs */
.tools-tabs {
    display: flex;
    gap: var(--spacing-2);
    margin-bottom: var(--spacing-8);
    background-color: var(--color-white);
    padding: var(--spacing-1);
    border-radius: var(--border-radius-xl);
    border: 1px solid var(--color-gray-200);
}

.tool-tab {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-2);
    padding: var(--spacing-3) var(--spacing-4);
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--color-gray-500);
    border-radius: var(--border-radius-lg);
    transition: all var(--transition-fast);
}

.tool-tab:hover {
    color: var(--color-gray-700);
    background-color: var(--color-gray-50);
}

.tool-tab.active {
    color: var(--color-white);
    background-color: var(--color-gray-900);
}

.tab-icon {
    width: 18px;
    height: 18px;
}

@media (max-width: 640px) {
    .tools-tabs {
        flex-direction: column;
    }
}

/* Tool Panels */
.tool-panel {
    display: none;
}

.tool-panel.active {
    display: block;
}

.tool-content {
    background-color: var(--color-white);
    border-radius: var(--border-radius-xl);
    border: 1px solid var(--color-gray-200);
    padding: var(--spacing-8);
}

/* Upload Zone */
.upload-zone {
    border: 2px dashed var(--color-gray-300);
    border-radius: var(--border-radius-xl);
    padding: var(--spacing-12) var(--spacing-8);
    text-align: center;
    cursor: pointer;
    transition: all var(--transition-fast);
    position: relative;
}

.upload-zone:hover,
.upload-zone.dragover {
    border-color: var(--color-gray-400);
    background-color: var(--color-gray-50);
}

.upload-zone.dragover {
    border-color: var(--color-gray-900);
    background-color: var(--color-gray-100);
}

.upload-icon {
    width: 48px;
    height: 48px;
    margin: 0 auto var(--spacing-4);
    color: var(--color-gray-400);
}

.upload-icon svg {
    width: 100%;
    height: 100%;
}

.upload-text {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--color-gray-700);
    margin-bottom: var(--spacing-1);
}

.upload-subtext {
    font-size: var(--font-size-sm);
    color: var(--color-gray-500);
    margin-bottom: var(--spacing-4);
}

.upload-formats {
    font-size: var(--font-size-xs);
    color: var(--color-gray-400);
}

.file-input {
    position: absolute;
    inset: 0;
    opacity: 0;
    cursor: pointer;
}

/* Tool Options */
.tool-options {
    margin-top: var(--spacing-6);
}

.file-preview {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-4);
    background-color: var(--color-gray-50);
    border-radius: var(--border-radius-lg);
    margin-bottom: var(--spacing-6);
}

.file-info {
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
}

.file-icon {
    width: 40px;
    height: 40px;
    padding: var(--spacing-2);
    background-color: var(--color-white);
    border-radius: var(--border-radius-md);
    color: var(--color-gray-600);
}

.file-details {
    display: flex;
    flex-direction: column;
}

.file-name {
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--color-gray-900);
}

.file-size {
    font-size: var(--font-size-xs);
    color: var(--color-gray-500);
}

.remove-file {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-gray-400);
    border-radius: var(--border-radius-md);
    transition: all var(--transition-fast);
}

.remove-file:hover {
    color: var(--color-error);
    background-color: var(--color-error-light);
}

.remove-file svg {
    width: 18px;
    height: 18px;
}

/* Size Input */
.size-input-group {
    margin-bottom: var(--spacing-6);
}

.input-label {
    display: block;
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--color-gray-700);
    margin-bottom: var(--spacing-2);
}

.input-wrapper {
    position: relative;
    display: flex;
    align-items: center;
}

.size-input {
    width: 100%;
    padding: var(--spacing-3) var(--spacing-4);
    padding-right: 60px;
    font-size: var(--font-size-base);
    border: 1px solid var(--color-gray-300);
    border-radius: var(--border-radius-lg);
    transition: border-color var(--transition-fast);
}

.size-input:focus {
    outline: none;
    border-color: var(--color-gray-900);
}

.input-suffix {
    position: absolute;
    right: var(--spacing-4);
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--color-gray-400);
}

.input-hint {
    font-size: var(--font-size-xs);
    color: var(--color-gray-500);
    margin-top: var(--spacing-2);
}

/* Format Select */
.format-select-group {
    margin-bottom: var(--spacing-6);
}

.format-buttons {
    display: flex;
    gap: var(--spacing-2);
    flex-wrap: wrap;
}

.format-btn {
    padding: var(--spacing-2) var(--spacing-4);
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--color-gray-600);
    background-color: var(--color-white);
    border: 1px solid var(--color-gray-300);
    border-radius: var(--border-radius-md);
    transition: all var(--transition-fast);
}

.format-btn:hover {
    border-color: var(--color-gray-400);
}

.format-btn.active {
    color: var(--color-white);
    background-color: var(--color-gray-900);
    border-color: var(--color-gray-900);
}

/* Warning Box */
.warning-box {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-3);
    padding: var(--spacing-4);
    background-color: var(--color-warning-light);
    border-radius: var(--border-radius-lg);
    margin-bottom: var(--spacing-6);
}

.warning-icon {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
    color: var(--color-warning);
}

.warning-text {
    font-size: var(--font-size-sm);
    color: var(--color-gray-700);
}

/* Progress */
.progress-container {
    margin-top: var(--spacing-6);
}

.progress-header {
    display: flex;
    justify-content: space-between;
    margin-bottom: var(--spacing-2);
}

.progress-label {
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--color-gray-700);
}

.progress-percent {
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--color-gray-900);
}

.progress-bar {
    height: 8px;
    background-color: var(--color-gray-200);
    border-radius: var(--border-radius-full);
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    width: 0%;
    background-color: var(--color-gray-900);
    border-radius: var(--border-radius-full);
    transition: width var(--transition-normal);
}

/* Results */
.result-container {
    margin-top: var(--spacing-6);
}

.result-success {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-2);
    padding: var(--spacing-4);
    background-color: var(--color-success-light);
    border-radius: var(--border-radius-lg);
    margin-bottom: var(--spacing-6);
}

.result-icon {
    width: 24px;
    height: 24px;
    color: var(--color-success);
}

.result-text {
    font-size: var(--font-size-base);
    font-weight: 600;
    color: var(--color-gray-900);
}

.result-stats {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-4);
    padding: var(--spacing-4);
    background-color: var(--color-gray-50);
    border-radius: var(--border-radius-lg);
    margin-bottom: var(--spacing-6);
    flex-wrap: wrap;
}

.stat {
    text-align: center;
}

.stat-label {
    display: block;
    font-size: var(--font-size-xs);
    color: var(--color-gray-500);
    margin-bottom: var(--spacing-1);
}

.stat-value {
    font-size: var(--font-size-lg);
    font-weight: 700;
    color: var(--color-gray-900);
}

.stat-highlight .stat-value {
    color: var(--color-success);
}

.stat-arrow {
    width: 24px;
    height: 24px;
    color: var(--color-gray-400);
}

.preview-container {
    margin-bottom: var(--spacing-6);
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    border: 1px solid var(--color-gray-200);
}

.preview-container img {
    width: 100%;
    max-height: 300px;
    object-fit: contain;
    background-color: var(--color-gray-100);
}

/* ================================
   FEATURES SECTION
   ================================ */
.features {
    padding: var(--spacing-20) var(--spacing-6);
    background-color: var(--color-white);
}

.features-container {
    max-width: 1200px;
    margin: 0 auto;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-6);
}

.feature-card {
    padding: var(--spacing-8);
    background-color: var(--color-white);
    border: 1px solid var(--color-gray-200);
    border-radius: var(--border-radius-xl);
    transition: all var(--transition-normal);
}

.feature-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--color-gray-300);
}

.feature-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--color-gray-100);
    border-radius: var(--border-radius-lg);
    margin-bottom: var(--spacing-4);
}

.feature-icon svg {
    width: 24px;
    height: 24px;
    color: var(--color-gray-700);
}

.feature-title {
    font-size: var(--font-size-lg);
    font-weight: 700;
    color: var(--color-gray-900);
    margin-bottom: var(--spacing-2);
}

.feature-desc {
    font-size: var(--font-size-sm);
    color: var(--color-gray-500);
    line-height: 1.6;
}

@media (max-width: 1024px) {
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 640px) {
    .features-grid {
        grid-template-columns: 1fr;
    }
}

/* ================================
   MORE POWERFUL TOOLS SECTION
   ================================ */
.more-tools {
    padding: var(--spacing-20) var(--spacing-6);
    background-color: var(--color-gray-50);
}

.more-tools-container {
    max-width: 1200px;
    margin: 0 auto;
}

.more-tools .features-grid {
    grid-template-columns: repeat(4, 1fr);
}

@media (max-width: 1024px) {
    .more-tools .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 640px) {
    .more-tools .features-grid {
        grid-template-columns: 1fr;
    }
}

/* ================================
   FAQ SECTION
   ================================ */
.faq {
    padding: var(--spacing-20) var(--spacing-6);
    background-color: var(--color-white);
}

.faq-container {
    max-width: 800px;
    margin: 0 auto;
}

.faq-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-3);
}

.faq-item {
    border: 1px solid var(--color-gray-200);
    border-radius: var(--border-radius-xl);
    overflow: hidden;
    transition: border-color var(--transition-fast);
}

.faq-item.open {
    border-color: var(--color-gray-300);
}

.faq-question {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-5) var(--spacing-6);
    font-size: var(--font-size-base);
    font-weight: 600;
    color: var(--color-gray-900);
    background-color: var(--color-white);
    text-align: left;
    transition: background-color var(--transition-fast);
    gap: var(--spacing-4);
}

.faq-question:hover {
    background-color: var(--color-gray-50);
}

.faq-item.open .faq-question {
    background-color: var(--color-gray-50);
}

.faq-chevron {
    width: 20px;
    height: 20px;
    color: var(--color-gray-500);
    flex-shrink: 0;
    transition: transform var(--transition-normal);
}

.faq-item.open .faq-chevron {
    transform: rotate(180deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-slow) ease;
}

.faq-item.open .faq-answer {
    max-height: 200px;
}

.faq-answer-inner {
    padding: 0 var(--spacing-6) var(--spacing-5);
    font-size: var(--font-size-sm);
    color: var(--color-gray-600);
    line-height: 1.7;
    border-top: 1px solid var(--color-gray-100);
    padding-top: var(--spacing-4);
}

@media (max-width: 640px) {
    .faq-question {
        padding: var(--spacing-4) var(--spacing-4);
        font-size: var(--font-size-sm);
    }

    .faq-answer-inner {
        padding: 0 var(--spacing-4) var(--spacing-4);
        padding-top: var(--spacing-3);
    }
}

/* ================================
   ABOUT SECTION
   ================================ */
.about {
    padding: var(--spacing-20) var(--spacing-6);
    background-color: var(--color-gray-50);
}

.about-container {
    max-width: 800px;
    margin: 0 auto;
}

.about-content {
    text-align: center;
}

.about-text {
    font-size: var(--font-size-lg);
    color: var(--color-gray-600);
    line-height: 1.8;
    margin-bottom: var(--spacing-6);
}

.trust-badges {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-8);
    margin-top: var(--spacing-8);
    flex-wrap: wrap;
}

.trust-badge {
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
    padding: var(--spacing-3) var(--spacing-5);
    background-color: var(--color-white);
    border: 1px solid var(--color-gray-200);
    border-radius: var(--border-radius-full);
}

.trust-badge svg {
    width: 20px;
    height: 20px;
    color: var(--color-success);
}

.trust-badge span {
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--color-gray-700);
}

/* ================================
   CONTACT SECTION
   ================================ */
.contact {
    padding: var(--spacing-20) var(--spacing-6);
    background-color: var(--color-gray-50);
}

.contact-container {
    max-width: 800px;
    margin: 0 auto;
}

.contact-card {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-6);
    background-color: var(--color-white);
    border: 1px solid var(--color-gray-200);
    border-radius: var(--border-radius-2xl);
    padding: var(--spacing-8);
    margin-bottom: var(--spacing-8);
    box-shadow: var(--shadow-sm);
}

.contact-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 52px;
    height: 52px;
    background-color: var(--color-gray-900);
    border-radius: var(--border-radius-xl);
    flex-shrink: 0;
}

.contact-icon svg {
    width: 22px;
    height: 22px;
    color: var(--color-white);
    stroke: var(--color-white);
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-2);
}

.contact-label {
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--color-gray-500);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin: 0;
}

.contact-email {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--color-gray-900);
    text-decoration: none;
    transition: color var(--transition-fast);
    word-break: break-all;
}

.contact-email:hover {
    color: var(--color-gray-600);
}

.contact-note {
    font-size: var(--font-size-sm);
    color: var(--color-gray-500);
    line-height: 1.6;
    margin: 0;
}

.contact-extras {
    display: flex;
    gap: var(--spacing-6);
    flex-wrap: wrap;
}

.contact-extra-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
    font-size: var(--font-size-sm);
    color: var(--color-gray-600);
    font-weight: 500;
}

.contact-extra-item svg {
    width: 16px;
    height: 16px;
    flex-shrink: 0;
    color: var(--color-gray-500);
}

@media (max-width: 640px) {
    .contact {
        padding: var(--spacing-12) var(--spacing-4);
    }

    .contact-card {
        flex-direction: column;
        gap: var(--spacing-4);
        padding: var(--spacing-6);
    }

    .contact-email {
        font-size: var(--font-size-lg);
    }

    .contact-extras {
        flex-direction: column;
        gap: var(--spacing-3);
    }
}

/* ================================
   FOOTER
   ================================ */
.footer {
    padding: var(--spacing-12) var(--spacing-6);
    background-color: var(--color-white);
    border-top: 1px solid var(--color-gray-200);
}

.footer-container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-8);
}

.footer-brand {
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
}

.footer-logo {
    width: 40px;
    height: 40px;
    object-fit: contain;
}

.footer-brand-text {
    display: flex;
    flex-direction: column;
}

.footer-name {
    font-size: var(--font-size-lg);
    font-weight: 700;
    color: var(--color-gray-900);
    line-height: 1.2;
}

.footer-tagline {
    font-size: var(--font-size-xs);
    color: var(--color-gray-500);
}

.footer-links {
    display: flex;
    align-items: center;
    gap: var(--spacing-8);
}

.footer-link {
    font-size: var(--font-size-sm);
    color: var(--color-gray-600);
    transition: color var(--transition-fast);
}

.footer-link:hover {
    color: var(--color-gray-900);
}

.footer-social {
    display: flex;
    align-items: center;
    gap: var(--spacing-4);
}

.social-link {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-gray-500);
    border: 1px solid var(--color-gray-200);
    border-radius: var(--border-radius-full);
    transition: all var(--transition-fast);
}

.social-link:hover {
    color: var(--color-gray-900);
    border-color: var(--color-gray-400);
    background-color: var(--color-gray-50);
}

.social-link svg {
    width: 20px;
    height: 20px;
}

.footer-bottom {
    padding-top: var(--spacing-8);
    border-top: 1px solid var(--color-gray-100);
    width: 100%;
    text-align: center;
}

.copyright {
    font-size: var(--font-size-sm);
    color: var(--color-gray-500);
}

@media (max-width: 640px) {
    .footer-links {
        flex-direction: column;
        gap: var(--spacing-4);
    }
}

/* ================================
   STAR RATING FEEDBACK
   ================================ */
.rating-section {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-3);
    padding: var(--spacing-6) var(--spacing-8);
    border: 1px solid var(--color-gray-200);
    border-radius: var(--border-radius-xl);
    background-color: var(--color-gray-50);
    width: 100%;
    max-width: 400px;
}

.rating-label {
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--color-gray-700);
}

.star-rating {
    display: flex;
    align-items: center;
    gap: var(--spacing-1);
}

.star-btn {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-gray-300);
    background: none;
    border: none;
    padding: 0;
    cursor: pointer;
    transition: color var(--transition-fast), transform var(--transition-fast);
}

.star-btn:hover,
.star-btn.star-active {
    color: var(--color-gray-900);
}

.star-btn:hover {
    transform: scale(1.15);
}

.star-btn:disabled {
    cursor: default;
    transform: none;
}

.star-btn svg {
    width: 28px;
    height: 28px;
}

.star-btn.star-active svg {
    fill: var(--color-gray-900);
}

.rating-thanks {
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--color-success);
}

.rating-average {
    font-size: var(--font-size-sm);
    color: var(--color-gray-500);
}

@media (max-width: 640px) {
    .rating-section {
        padding: var(--spacing-4) var(--spacing-6);
    }

    .star-btn {
        width: 32px;
        height: 32px;
    }

    .star-btn svg {
        width: 24px;
        height: 24px;
    }
}

/* ================================
   ANIMATIONS
   ================================ */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.tool-panel.active .tool-content {
    animation: fadeIn 0.3s ease;
}

@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.5;
    }
}

.progress-fill {
    animation: pulse 1.5s ease-in-out infinite;
}

/* ================================
   WELCOME POPUP
   ================================ */
.popup-overlay {
    position: fixed;
    inset: 0;
    background-color: rgba(0, 0, 0, 0.55);
    z-index: 300;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-4);
    opacity: 0;
    animation: popupFadeIn 0.35s ease forwards;
}

.popup-overlay.hidden {
    display: none;
}

@keyframes popupFadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

.popup-card {
    background-color: var(--color-white);
    border-radius: var(--border-radius-2xl);
    padding: var(--spacing-10) var(--spacing-8);
    max-width: 440px;
    width: 100%;
    text-align: center;
    box-shadow: var(--shadow-xl);
    transform: translateY(20px);
    animation: popupSlideUp 0.35s ease forwards;
}

@keyframes popupSlideUp {
    from {
        transform: translateY(20px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

.popup-icon {
    width: 56px;
    height: 56px;
    margin: 0 auto var(--spacing-6);
    background-color: var(--color-gray-100);
    border-radius: var(--border-radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
}

.popup-icon svg {
    width: 28px;
    height: 28px;
    color: var(--color-gray-700);
}

.popup-title {
    font-size: var(--font-size-2xl);
    font-weight: 800;
    color: var(--color-gray-900);
    margin-bottom: var(--spacing-3);
}

.popup-text {
    font-size: var(--font-size-base);
    color: var(--color-gray-500);
    line-height: 1.7;
    margin-bottom: var(--spacing-8);
}

.popup-buttons {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-3);
}

.popup-btn-primary {
    width: 100%;
    padding: var(--spacing-3) var(--spacing-6);
    font-size: var(--font-size-base);
    font-weight: 600;
    color: var(--color-white);
    background-color: var(--color-gray-900);
    border: none;
    border-radius: var(--border-radius-lg);
    cursor: pointer;
    transition: background-color var(--transition-fast), transform var(--transition-fast);
}

.popup-btn-primary:hover {
    background-color: var(--color-gray-800);
    transform: translateY(-1px);
}

.popup-btn-close {
    width: 100%;
    padding: var(--spacing-2) var(--spacing-4);
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--color-gray-500);
    background: none;
    border: none;
    cursor: pointer;
    transition: color var(--transition-fast);
}

.popup-btn-close:hover {
    color: var(--color-gray-900);
}

/* ================================
   PRIVACY POLICY SECTION
   ================================ */
.privacy-policy {
    padding: var(--spacing-20) var(--spacing-6);
    background-color: var(--color-white);
}

.privacy-container {
    max-width: 800px;
    margin: 0 auto;
}

.privacy-content {
    text-align: center;
}

@media (max-width: 480px) {
    .popup-card {
        padding: var(--spacing-8) var(--spacing-6);
    }
}