/* =========================================
   THEME
   ========================================= */

:root {
    --bg: #0b1120;
    --surface: #111c31;
    --surface-light: #192740;
    --border: #293b58;
    --text: #f1f5f9;
    --muted: #94a3b8;
    --primary: #38bdf8;
    --purple: #8b5cf6;
    --green: #22c55e;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    min-height: 100vh;
    font-family: "Segoe UI", Arial, sans-serif;
    color: var(--text);

    background:
        radial-gradient(
            circle at 50% 0%,
            #19345a 0%,
            transparent 45%
        ),
        var(--bg);
}

[hidden] {
    display: none !important;
}

/* =========================================
   HEADER
   ========================================= */

.site-header {
    text-align: center;
    padding: 35px 20px 25px;
}

.site-header h1 {
    font-size: clamp(3rem, 7vw, 4.5rem);
    font-weight: 800;
    letter-spacing: -3px;
    color: #65c9ff;
    text-shadow: 0 0 35px rgba(56, 189, 248, 0.35);
}

.site-header h2 {
    font-size: 1.15rem;
    color: #dbeafe;
    margin-top: 6px;
}

.site-header p {
    color: var(--muted);
    font-size: 0.95rem;
    max-width: 650px;
    margin: 10px auto 0;
}

/* =========================================
   MAIN WORKSPACE
   ========================================= */

main.container {
    max-width: 1120px;
    margin: 10px auto 60px;
    padding: 15px;
}

.workspace-heading {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 15px;
    margin-bottom: 22px;
}

.workspace-eyebrow {
    display: block;
    color: var(--primary);
    font-size: 11px;
    font-weight: 750;
    letter-spacing: 1.5px;
    margin-bottom: 8px;
}

.workspace-heading h2 {
    font-size: 1.9rem;
    font-weight: 750;
    margin-bottom: 8px;
}

.workspace-heading p {
    color: var(--muted);
    margin-bottom: 0;
}

.workspace-status {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    flex-shrink: 0;
    padding: 9px 14px;
    color: #c4e8ff;
    font-size: 12px;
    border: 1px solid var(--border);
    border-radius: 100px;
    background: rgba(56, 189, 248, 0.06);
}

.status-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--primary);
    box-shadow: 0 0 10px rgba(56, 189, 248, 0.5);
}

.analysis-workspace {
    padding: 20px;
    background: rgba(17, 28, 49, 0.72);
    border: 1px solid var(--border);
    border-radius: 24px;
    box-shadow: 0 20px 55px rgba(0, 0, 0, 0.18);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
}

/* =========================================
   WORKSPACE PANELS
   ========================================= */

.analysis-workspace section {
    padding: 22px;
    background: rgba(11, 17, 32, 0.42);
    border: 1px solid rgba(148, 163, 184, 0.14);
    border-radius: 18px;
}

.upload-section,
.text-section {
    margin-bottom: 16px;
}

section h2 {
    color: var(--text);
}

section p {
    color: var(--muted);
}

/* =========================================
   STEP HEADINGS
   ========================================= */

.step-heading {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 12px;
    margin-bottom: 20px;
}

.step-label {
    display: block;
    font-size: 11px;
    font-weight: 750;
    letter-spacing: 1.4px;
    color: var(--primary);
    margin-bottom: 7px;
}

.step-heading h2 {
    font-size: 1.35rem;
    font-weight: 750;
    margin: 0;
}

.step-description {
    font-size: 12px;
    color: var(--muted);
}

/* =========================================
   GLOBAL BUTTONS
   ========================================= */

button {
    border: 0;
    border-radius: 12px;
    padding: 13px 18px;
    font-weight: 650;
    color: white;
    background: linear-gradient(135deg, #2563eb, #0891b2);
    cursor: pointer;

    transition:
        transform 0.25s ease,
        background 0.25s ease,
        box-shadow 0.25s ease,
        border-color 0.25s ease;
}

button:hover:not(:disabled) {
    transform: translateY(-2px);
}

button:disabled {
    opacity: 0.55;
    cursor: not-allowed;
}

/* =========================================
   GLASS MEDIA CARDS
   ========================================= */

.upload-section .buttons {
    display: grid;
    grid-template-columns: repeat(5, minmax(0, 1fr));
    gap: 14px;
    width: 100%;
}

.upload-section .buttons button {
    --card-color: 56, 189, 248;

    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 10px;

    width: 100%;
    min-width: 0;
    min-height: 125px;
    padding: 18px 10px;

    background: rgba(255, 255, 255, 0.045);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: 16px;

    color: #e2e8f0;
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);

    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.10);
}

.media-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 52px;
    height: 52px;
    font-size: 27px;
    background: rgba(var(--card-color), 0.12);
    border-radius: 14px;

    transition:
        transform 0.25s ease,
        background 0.25s ease;
}

.media-name {
    font-size: 15px;
    font-weight: 650;
}

.upload-section #imageButton {
    --card-color: 59, 130, 246;
}

.upload-section #videoButton {
    --card-color: 168, 85, 247;
}

.upload-section #audioButton {
    --card-color: 245, 158, 11;
}

.upload-section #textButton {
    --card-color: 6, 182, 212;
}

.upload-section #cameraButton {
    --card-color: 236, 72, 153;
}

.upload-section .buttons button:hover:not(:disabled),
.upload-section .buttons button.active {
    transform: translateY(-4px);
    background: rgba(var(--card-color), 0.16);
    border-color: rgba(var(--card-color), 0.85);

    box-shadow:
        0 0 0 1px rgba(var(--card-color), 0.20),
        0 12px 35px rgba(var(--card-color), 0.22);
}

.upload-section .buttons button:hover .media-icon,
.upload-section .buttons button.active .media-icon {
    background: rgba(var(--card-color), 0.28);
    transform: scale(1.08);
}

.upload-section .buttons button:focus-visible {
    outline: 2px solid rgb(var(--card-color));
    outline-offset: 3px;
}

/* =========================================
   LINK INPUT
   ========================================= */

.link-section {
    margin-top: 20px;
    padding-top: 18px;
    border-top: 1px solid rgba(148, 163, 184, 0.13);
}

.link-label {
    display: block;
    color: #cbd5e1;
    font-size: 13px;
    font-weight: 600;
    margin-bottom: 10px;
}

.link-controls {
    display: flex;
    align-items: stretch;
    gap: 10px;
}

#mediaURL,
#textInput {
    width: 100%;
    padding: 13px 15px;
    background: var(--surface-light);
    border: 1px solid var(--border);
    border-radius: 12px;
    color: white;
    font-size: 15px;
    outline: none;
}

#mediaURL {
    flex: 1;
    min-width: 0;
}

#mediaURL:focus,
#textInput:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(56, 189, 248, 0.12);
}

#mediaURL::placeholder,
#textInput::placeholder {
    color: #94a3b8;
}

#linkButton {
    flex-shrink: 0;
    background: linear-gradient(135deg, #2563eb, #0891b2);
}

#textInput {
    resize: vertical;
    min-height: 130px;
}

/* =========================================
   DASHBOARD GRID
   ========================================= */

.dashboard-row {
    align-items: stretch;
}

.dashboard-row > div {
    min-width: 0;
}

.preview-section,
.analysis-action {
    height: 100%;
}

/* =========================================
   CONTENT PREVIEW
   ========================================= */

#preview {
    min-height: 235px;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 18px;

    background: rgba(7, 13, 26, 0.72);
    border: 1px dashed #415472;
    border-radius: 14px;
    overflow: hidden;
}

.empty-preview {
    text-align: center;
}

.empty-preview-icon {
    display: block;
    font-size: 38px;
    margin-bottom: 10px;
}

.empty-preview p {
    color: var(--text);
    margin-bottom: 4px;
    font-weight: 600;
}

.empty-preview small {
    color: var(--muted);
}

#preview img,
#preview video {
    display: block;
    max-width: 100%;
    max-height: 280px;
    width: auto;
    height: auto;
    border-radius: 12px;
    object-fit: contain;
}

#preview audio {
    width: 100%;
    max-width: 100%;
}

/* =========================================
   CAMERA INSIDE PREVIEW
   ========================================= */

.camera-layout {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
}

#cameraPreview {
    display: block;
    width: 100%;
    max-height: 280px;
    aspect-ratio: 16 / 9;
    object-fit: contain;
    background: #030712;
    border: 1px solid var(--border);
    border-radius: 14px;
}

.camera-controls {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 10px;
    width: 100%;
}

#captureButton {
    background: linear-gradient(135deg, #2563eb, #06b6d4);
}

#stopCameraButton {
    background: linear-gradient(135deg, #dc2626, #ef4444);
}

#captureButton,
#stopCameraButton {
    min-width: 145px;
    padding: 11px 14px;
    font-size: 13px;
}

/* =========================================
   RUN ANALYSIS
   ========================================= */

.analysis-action {
    display: flex;
    flex-direction: column;
}

.analysis-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    gap: 14px;
}

.analysis-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 60px;
    height: 60px;
    border-radius: 18px;
    font-size: 28px;
    background: rgba(34, 197, 94, 0.10);
    border: 1px solid rgba(34, 197, 94, 0.18);
}

.analysis-content p {
    max-width: 290px;
    margin: 0;
    font-size: 14px;
    line-height: 1.6;
}

#analyzeButton {
    width: 100%;
    max-width: 290px;
    padding: 15px;
    font-size: 16px;
    background: linear-gradient(135deg, #16a34a, #22c55e);
    box-shadow: 0 0 25px rgba(34, 197, 94, 0.20);
}

#analyzeButton:hover:not(:disabled) {
    box-shadow: 0 0 32px rgba(34, 197, 94, 0.38);
}

.analysis-note {
    max-width: 260px;
    color: var(--muted);
    font-size: 11px;
    line-height: 1.5;
}

/* =========================================
   CAPTCHA
   ========================================= */

#captchaSection {
    margin-top: 16px;
    text-align: center;
}

#recaptcha-container {
    display: flex;
    justify-content: center;
    margin-top: 18px;
}

/* =========================================
   RESULTS
   ========================================= */

#result:empty {
    display: none;
}

#result:not(:empty) {
    display: block;
    margin-top: 16px;
    padding: 24px;

    color: var(--text);
    background: var(--surface);
    border: 1px solid var(--border);
    border-left: 4px solid var(--green);
    border-radius: 16px;
    line-height: 1.8;
}

#result h2 {
    font-size: 1.5rem;
    margin-bottom: 20px;
}

#result p {
    margin-bottom: 10px;
}

.result-meter {
    height: 12px;
    background: #293b58;
    border-radius: 100px;
    overflow: hidden;
    margin: 8px 0 20px;
}

.result-meter-fill {
    height: 100%;
    border-radius: inherit;
    transition: width 0.5s ease;
}

.result-meter-fill.ai {
    background: linear-gradient(90deg, #f97316, #ef4444);
}

.result-meter-fill.human {
    background: linear-gradient(90deg, #16a34a, #4ade80);
}

/* =========================================
   TABLET
   ========================================= */

@media (max-width: 991px) {
    .analysis-workspace {
        padding: 16px;
    }

    .upload-section .buttons {
        grid-template-columns: repeat(3, minmax(0, 1fr));
    }

    .analysis-action {
        min-height: 250px;
    }
}

/* =========================================
   MOBILE
   ========================================= */

@media (max-width: 576px) {
    .site-header {
        padding: 30px 15px 20px;
    }

    main.container {
        padding: 12px;
    }

    .workspace-heading {
        flex-direction: column;
        align-items: flex-start;
    }

    .analysis-workspace {
        padding: 12px;
    }

    .analysis-workspace section {
        padding: 16px;
    }

    .upload-section .buttons {
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 10px;
    }

    .upload-section .buttons button {
        min-height: 105px;
        padding: 13px 8px;
    }

    .media-icon {
        width: 46px;
        height: 46px;
        font-size: 24px;
    }

    .media-name {
        font-size: 14px;
    }

    .link-controls {
        flex-direction: column;
    }

    #linkButton {
        width: 100%;
    }

    #preview {
        min-height: 190px;
    }

    #captureButton,
    #stopCameraButton {
        flex: 1;
        min-width: 0;
    }
}

@media (prefers-reduced-motion: reduce) {
    button,
    .media-icon,
    .result-meter-fill {
        transition: none;
    }
}