:root {
    /* Color tokens — "sunrise" palette */
    --void: #f9fbfd;
    --void-2: #eef2f6;
    --surface: #ffffff;
    --surface-2: #f4f7fb;
    --line: #dbe0eb;
    --line-soft: #e8ecf3;
    --ink: #111827;
    --ink-dim: #4b5563;
    --ink-faint: #9ca3af;
    --marigold: #ff7e00;
    --marigold-deep: #e06c00;
    --marigold-wash: rgba(255, 126, 0, 0.12);
    --emerald: #10b981;
    --emerald-wash: rgba(16, 185, 129, 0.12);
    --rose: #ef4444;

    --font-display: "Fraunces", Georgia, serif;
    --font-body: "Outfit", sans-serif;
    --font-mono: "JetBrains Mono", "Consolas", monospace;

    /* Legacy aliases referenced directly by script.js inline styles */
    --accent: var(--marigold);
    --accent-hover: var(--marigold-deep);
    --success: var(--emerald);
    --border-color: var(--line);
}

.hidden {
    display: none !important;
}

/* ============ Login Screen ============ */
.login-screen {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1.5rem;
}

.login-card {
    position: relative;
    width: 100%;
    max-width: 440px;
    background-color: var(--surface);
    border: 1px solid var(--line);
    border-radius: 22px;
    padding: 2.5rem 2.25rem 2.25rem;
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.08);
    overflow: hidden;
}

.login-card .hero-glow {
    opacity: 0.7;
}

.login-title {
    position: relative;
    font-family: var(--font-display);
    font-size: clamp(1.6rem, 5vw, 2rem);
    font-weight: 600;
    letter-spacing: -0.01em;
    margin-top: 0.6rem;
    margin-bottom: 0.5rem;
}

.login-sub {
    position: relative;
    color: var(--ink-dim);
    font-size: 0.9rem;
    margin-bottom: 1.75rem;
}

.login-form {
    position: relative;
    display: flex;
    flex-direction: column;
    gap: 1.15rem;
}

.field-group {
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
}

.field-group label {
    font-size: 0.78rem;
    font-weight: 600;
    color: var(--ink-dim);
    letter-spacing: 0.01em;
}

.field-group input {
    background-color: var(--void);
    border: 1px solid var(--line);
    border-radius: 10px;
    padding: 0.8rem 1rem;
    color: var(--ink);
    font-family: var(--font-body);
    font-size: 0.9rem;
    transition: border-color 0.2s, box-shadow 0.2s;
}

.field-group input::placeholder {
    color: var(--ink-faint);
}

.field-group input:focus {
    outline: none;
    border-color: var(--marigold);
    box-shadow: 0 0 0 3px var(--marigold-wash);
}

.field-group input.has-error {
    border-color: var(--rose);
    box-shadow: 0 0 0 3px rgba(255, 107, 107, 0.15);
}

.field-error {
    min-height: 1em;
    font-size: 0.75rem;
    color: var(--rose);
}

.login-submit-btn {
    margin-top: 0.5rem;
    width: 100%;
    background: linear-gradient(100deg, var(--marigold-deep), var(--marigold));
    color: #ffffff;
    border: none;
    padding: 0.9rem 1.1rem;
    border-radius: 12px;
    font-size: 1rem;
    font-weight: 700;
    font-family: var(--font-body);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.55rem;
    transition: transform 0.15s ease, box-shadow 0.2s ease, filter 0.2s ease;
    box-shadow: 0 10px 24px rgba(255, 126, 0, 0.25);
}

.login-submit-btn:hover {
    filter: brightness(1.08);
    transform: translateY(-1px);
    box-shadow: 0 14px 30px rgba(255, 165, 48, 0.38);
}

.login-submit-btn:active {
    transform: translateY(0);
}

.login-submit-btn:focus-visible {
    outline: 2px solid var(--marigold);
    outline-offset: 3px;
}

/* ============ Welcome Panel ============ */
.welcome-panel {
    position: relative;
    background-color: var(--void-2);
    border: 1px solid var(--line);
    border-radius: 14px;
    padding: 1.5rem;
    margin-bottom: 2rem;
}

.welcome-text {
    margin-bottom: 1.1rem;
}

.welcome-greeting {
    font-family: var(--font-display);
    font-size: 1.15rem;
    font-weight: 600;
    color: var(--ink);
}

.welcome-sub {
    color: var(--ink-dim);
    font-size: 0.88rem;
    margin-top: 0.35rem;
}

.interest-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.6rem;
    margin-bottom: 1rem;
}

.interest-tag {
    background-color: var(--surface-2);
    border: 1px solid var(--line);
    color: var(--ink-dim);
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-family: var(--font-body);
    font-size: 0.82rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
}

.interest-tag:hover {
    border-color: var(--marigold);
    color: var(--ink);
    background-color: var(--marigold-wash);
    transform: translateY(-1px);
}

.interest-tag.selected {
    background-color: var(--marigold);
    border-color: var(--marigold);
    color: #ffffff;
    font-weight: 700;
}

.interest-tag:focus-visible {
    outline: 2px solid var(--marigold);
    outline-offset: 2px;
}

.interest-custom {
    display: flex;
    gap: 0.6rem;
}

.interest-custom input {
    flex: 1;
    background-color: var(--void);
    border: 1px solid var(--line);
    border-radius: 10px;
    padding: 0.7rem 0.9rem;
    color: var(--ink);
    font-family: var(--font-body);
    font-size: 0.85rem;
    transition: border-color 0.2s, box-shadow 0.2s;
}

.interest-custom input::placeholder {
    color: var(--ink-faint);
}

.interest-custom input:focus {
    outline: none;
    border-color: var(--marigold);
    box-shadow: 0 0 0 3px var(--marigold-wash);
}

.interest-save-btn {
    background-color: var(--emerald);
    color: #06251c;
    border: none;
    padding: 0.7rem 1.2rem;
    border-radius: 10px;
    font-family: var(--font-body);
    font-size: 0.85rem;
    font-weight: 700;
    cursor: pointer;
    transition: filter 0.2s, transform 0.1s;
}

.interest-save-btn:hover {
    filter: brightness(1.1);
}

.interest-save-btn:active {
    transform: scale(0.97);
}

.interest-save-btn:focus-visible {
    outline: 2px solid var(--emerald);
    outline-offset: 2px;
}

.interest-confirm {
    min-height: 1.1em;
    margin-top: 0.85rem;
    font-size: 0.82rem;
    color: var(--emerald);
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: var(--font-body);
    background-color: var(--void);
    background-image:
        radial-gradient(ellipse 900px 520px at 15% -8%, rgba(255, 126, 0, 0.08), transparent 60%),
        radial-gradient(ellipse 700px 460px at 100% 10%, rgba(16, 185, 129, 0.06), transparent 55%);
    background-attachment: fixed;
    color: var(--ink);
    line-height: 1.6;
    padding: 2rem 1.25rem;
}

#confetti-canvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 9999;
}

.app-container {
    max-width: 900px;
    margin: 0 auto;
}

/* ============ Hero Section ============ */
.hero-section {
    position: relative;
    background-color: var(--surface);
    border: 1px solid var(--line);
    border-radius: 20px;
    padding: 2.25rem 2rem 2rem;
    margin-bottom: 2.25rem;
    box-shadow: 0 12px 36px rgba(0, 0, 0, 0.06);
    overflow: hidden;
}

/* Contour-line motif, evoking a topographic map / mountain ascent */
.hero-glow {
    position: absolute;
    inset: 0;
    pointer-events: none;
    opacity: 0.55;
    background-image: repeating-radial-gradient(
        circle at 105% -10%,
        transparent 0px,
        transparent 22px,
        rgba(255, 165, 48, 0.07) 23px,
        rgba(255, 165, 48, 0.07) 24px
    );
    -webkit-mask-image: linear-gradient(to bottom, black, transparent 72%);
    mask-image: linear-gradient(to bottom, black, transparent 72%);
}

.hero-top {
    position: relative;
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 1.75rem;
    gap: 1rem;
}

.hero-title-group {
    display: flex;
    flex-direction: column;
    gap: 0.35rem;
}

.eyebrow {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    font-weight: 600;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--marigold);
}

.hero-title-group h1 {
    font-family: var(--font-display);
    font-size: 1.6rem;
    font-weight: 600;
    letter-spacing: -0.01em;
}

.reset-btn {
    background: none;
    border: 1px solid var(--line);
    color: var(--ink-dim);
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.8rem;
    padding: 0.5rem 0.9rem;
    border-radius: 20px;
    transition: color 0.2s, border-color 0.2s, background-color 0.2s;
    font-family: var(--font-body);
    white-space: nowrap;
}

.reset-btn:hover {
    color: var(--ink);
    border-color: var(--marigold);
    background-color: var(--marigold-wash);
}

.reset-btn:focus-visible {
    outline: 2px solid var(--marigold);
    outline-offset: 2px;
}

/* Summit figure — the "hero is a thesis" moment */
.summit-figure {
    position: relative;
    margin-bottom: 2rem;
    padding-bottom: 1.75rem;
    border-bottom: 1px dashed var(--line);
}

.summit-label {
    display: block;
    font-size: 0.85rem;
    color: var(--ink-dim);
    margin-bottom: 0.25rem;
}

.summit-number {
    font-family: var(--font-display);
    font-weight: 600;
    font-size: clamp(2.1rem, 6vw, 3.2rem);
    line-height: 1;
    letter-spacing: -0.01em;
    background: linear-gradient(100deg, var(--marigold) 0%, #ffd08a 45%, var(--marigold) 100%);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    display: inline-block;
}

.summit-unit {
    font-family: var(--font-mono);
    font-size: 1.1rem;
    font-weight: 500;
    color: var(--ink-dim);
    -webkit-text-fill-color: var(--ink-dim);
    margin-left: 0.35rem;
}

.summit-meta {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-top: 1rem;
    flex-wrap: wrap;
}

.step-badge {
    background-color: var(--marigold-wash);
    color: var(--marigold);
    padding: 0.3rem 0.8rem;
    border-radius: 20px;
    font-family: var(--font-mono);
    font-size: 0.8rem;
    font-weight: 600;
    border: 1px solid rgba(255, 126, 0, 0.3);
}

.fire-badge {
    color: var(--ink-dim);
    font-size: 0.85rem;
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

/* Progress Trail (ascent bar) */
.progress-container {
    margin-bottom: 2rem;
}

.progress-track {
    height: 8px;
    background-color: var(--line-soft);
    background-image: repeating-linear-gradient(
        90deg, transparent, transparent 6px, rgba(255,255,255,0.03) 7px, transparent 8px
    );
    border-radius: 4px;
    position: relative;
    margin-bottom: 1rem;
}

.progress-fill {
    position: absolute;
    top: 0;
    left: 0;
    height: 100%;
    background: linear-gradient(90deg, var(--marigold-deep), var(--marigold));
    border-radius: 4px;
    width: 0%;
    transition: width 0.8s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 0 12px rgba(255, 126, 0, 0.4);
}

.progress-nodes {
    position: absolute;
    top: 50%;
    left: 0;
    width: 100%;
    transform: translateY(-50%);
    display: flex;
    justify-content: space-between;
}

.node {
    width: 15px;
    height: 15px;
    background-color: var(--surface-2);
    border-radius: 50%;
    border: 3px solid var(--surface);
    transition: all 0.3s;
    position: relative;
    z-index: 2;
}

.node.active {
    background-color: var(--marigold);
    box-shadow: 0 0 10px rgba(255, 126, 0, 0.5);
}

.progress-labels {
    display: flex;
    justify-content: space-between;
    color: var(--ink-dim);
    font-family: var(--font-mono);
    font-size: 0.68rem;
    letter-spacing: 0.02em;
    text-transform: uppercase;
}

/* Instructions */
.instruction-banner {
    background-color: var(--void-2);
    border: 1px solid var(--line);
    padding: 1rem 1.1rem;
    border-radius: 10px;
    text-align: center;
    font-size: 0.875rem;
    margin-bottom: 1.5rem;
}

.instruction-banner strong {
    color: var(--marigold);
    font-weight: 600;
}

.how-it-works {
    display: flex;
    justify-content: space-between;
    color: var(--ink-dim);
    font-size: 0.85rem;
    flex-wrap: wrap;
    gap: 1rem;
}

.hiw-step {
    display: flex;
    align-items: center;
    gap: 0.55rem;
}

.hiw-num {
    background-color: var(--marigold-wash);
    color: var(--marigold);
    width: 22px;
    height: 22px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-mono);
    font-weight: 600;
    font-size: 0.7rem;
    flex-shrink: 0;
}

/* ============ Steps / Ascent Trail ============ */
.steps-container {
    position: relative;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    padding-left: 3.5rem;
}

.steps-container::before {
    content: '';
    position: absolute;
    top: 0.75rem;
    bottom: 0.75rem;
    left: 1.625rem;
    width: 2px;
    background: repeating-linear-gradient(
        to bottom, var(--line) 0, var(--line) 6px, transparent 6px, transparent 12px
    );
}

.step-card {
    position: relative;
    background-color: var(--surface);
    border: 1px solid var(--line);
    border-radius: 14px;
    overflow: hidden;
    transition: all 0.3s ease;
}

/* Trail marker: number by default, lock when locked, check when completed */
.step-card::before {
    content: attr(data-step);
    position: absolute;
    left: -3rem;
    top: 1.4rem;
    width: 2.25rem;
    height: 2.25rem;
    border-radius: 50%;
    background-color: var(--surface-2);
    border: 2px solid var(--line);
    color: var(--ink-dim);
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-mono);
    font-weight: 600;
    font-size: 0.85rem;
    z-index: 3;
    transition: all 0.3s ease;
}

.step-card.active::before {
    background-color: var(--void);
    border-color: var(--marigold);
    color: var(--marigold);
    box-shadow: 0 0 0 4px var(--marigold-wash), 0 0 14px rgba(255, 126, 0, 0.2);
    animation: markerPulse 2.2s ease-in-out infinite;
}

.step-card.completed::before {
    content: '✓';
    background-color: var(--emerald);
    border-color: var(--emerald);
    color: #06251c;
    font-size: 1rem;
}

.step-card.locked::before {
    content: '🔒';
    font-size: 0.8rem;
    background-color: var(--void-2);
}

@keyframes markerPulse {
    0%, 100% { box-shadow: 0 0 0 4px var(--marigold-wash), 0 0 14px rgba(255, 126, 0, 0.2); }
    50% { box-shadow: 0 0 0 7px var(--marigold-wash), 0 0 18px rgba(255, 126, 0, 0.35); }
}

.step-card:hover:not(.locked) {
    border-color: rgba(255, 126, 0, 0.4);
    box-shadow: 0 0 0 1px rgba(255, 126, 0, 0.12), 0 8px 24px rgba(0, 0, 0, 0.06);
}

.step-card.completed:hover {
    border-color: rgba(16, 185, 129, 0.4);
    box-shadow: 0 0 0 1px rgba(16, 185, 129, 0.12), 0 8px 24px rgba(0, 0, 0, 0.06);
}

.step-card.active {
    border-color: rgba(255, 126, 0, 0.45);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.08);
}

.step-card.locked {
    opacity: 0.55;
    pointer-events: none;
    filter: grayscale(0.6);
}

.step-header {
    position: relative;
    padding: 1.4rem 1.5rem 1.4rem 1.75rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
    background-color: rgba(255, 255, 255, 0.02);
    border-bottom: 1px solid var(--line);
    cursor: pointer;
    transition: background-color 0.2s, padding-left 0.2s;
}

/* Hover "tab" treatment: accent bar slides in + content nudges right */
.step-header::after {
    content: '';
    position: absolute;
    left: 0;
    top: 0.6rem;
    bottom: 0.6rem;
    width: 3px;
    border-radius: 0 3px 3px 0;
    background-color: var(--marigold);
    transform: scaleY(0);
    transform-origin: center;
    transition: transform 0.22s ease;
}

.step-card:not(.locked) .step-header:hover {
    background-color: var(--marigold-wash);
    padding-left: 2rem;
}

.step-card:not(.locked) .step-header:hover::after {
    transform: scaleY(1);
}

.step-card.completed .step-header:hover {
    background-color: var(--emerald-wash);
}

.step-card.completed .step-header:hover::after {
    background-color: var(--emerald);
}

.step-header h2 {
    font-family: var(--font-display);
    font-size: 1.15rem;
    font-weight: 600;
    letter-spacing: -0.005em;
}

.step-header-right {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    flex-shrink: 0;
}

.chevron {
    color: var(--ink-faint);
    transition: transform 0.25s ease, color 0.2s ease;
}

.step-header.is-open .chevron {
    transform: rotate(180deg);
    color: var(--marigold);
}

.step-card:not(.locked) .step-header:hover .chevron {
    color: var(--marigold);
}

.status-indicator {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    letter-spacing: 0.03em;
    text-transform: uppercase;
    padding: 0.3rem 0.7rem;
    border-radius: 20px;
    background-color: var(--surface-2);
    color: var(--ink-faint);
    font-weight: 600;
    transition: all 0.3s;
    white-space: nowrap;
}

.step-card.active .status-indicator {
    background-color: var(--marigold-wash);
    color: var(--marigold);
}

.step-card.completed .status-indicator {
    background-color: var(--emerald-wash);
    color: var(--emerald);
}

.step-content {
    padding: 1.5rem;
}

.prompt-container, .response-container {
    background-color: var(--void-2);
    border: 1px solid var(--line-soft);
    border-radius: 10px;
    padding: 1.25rem;
    margin-bottom: 1.5rem;
}

.prompt-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
    gap: 1rem;
}

.prompt-header h3, .response-container h3 {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--ink);
}

.copy-btn {
    background-color: var(--marigold);
    color: #ffffff;
    border: none;
    padding: 0.55rem 1rem;
    border-radius: 8px;
    font-size: 0.85rem;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    transition: background-color 0.2s, transform 0.1s;
    font-family: var(--font-body);
    white-space: nowrap;
}

.copy-btn:hover {
    background-color: var(--marigold-deep);
}

.copy-btn:active {
    transform: scale(0.97);
}

.copy-btn:focus-visible {
    outline: 2px solid var(--marigold);
    outline-offset: 2px;
}

.prompt-text {
    background-color: var(--void);
    padding: 1rem;
    border-radius: 8px;
    font-size: 0.82rem;
    color: var(--ink);
    white-space: pre-wrap;
    font-family: var(--font-mono);
    border: 1px solid var(--line);
    max-height: 250px;
    overflow-y: auto;
}

.prompt-text::-webkit-scrollbar {
    width: 6px;
}
.prompt-text::-webkit-scrollbar-track {
    background: var(--void);
}
.prompt-text::-webkit-scrollbar-thumb {
    background: var(--line);
    border-radius: 3px;
}

.notification-bar {
    margin-top: 1rem;
    background-color: var(--emerald-wash);
    color: var(--emerald);
    padding: 0.75rem 0.9rem;
    border-radius: 8px;
    font-size: 0.85rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    border: 1px solid rgba(53, 214, 155, 0.3);
    animation: slideIn 0.3s ease-out;
}

@keyframes slideIn {
    from { opacity: 0; transform: translateY(-10px); }
    to { opacity: 1; transform: translateY(0); }
}

.helper-text {
    font-size: 0.85rem;
    color: var(--ink-dim);
    margin-bottom: 1rem;
}

textarea {
    width: 100%;
    min-height: 150px;
    background-color: var(--void);
    border: 1px solid var(--line);
    border-radius: 8px;
    padding: 1rem;
    color: var(--ink);
    font-family: var(--font-body);
    font-size: 0.875rem;
    resize: vertical;
    transition: border-color 0.2s, box-shadow 0.2s;
}

textarea:focus {
    outline: none;
    border-color: var(--marigold);
    box-shadow: 0 0 0 3px var(--marigold-wash);
}

.complete-btn {
    width: 100%;
    background-color: transparent;
    border: 1px solid var(--emerald);
    color: var(--emerald);
    padding: 0.875rem;
    border-radius: 10px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
    font-family: var(--font-body);
}

.complete-btn:hover {
    background-color: var(--emerald);
    color: #ffffff;
}

.complete-btn:focus-visible {
    outline: 2px solid var(--emerald);
    outline-offset: 2px;
}

.complete-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

@keyframes glowFade {
    0% { box-shadow: 0 0 0 rgba(255, 126, 0, 0); border-color: var(--line); }
    50% { box-shadow: 0 0 24px rgba(255, 126, 0, 0.35); border-color: var(--marigold); }
    100% { box-shadow: 0 6px 20px rgba(0, 0, 0, 0.08); border-color: rgba(255, 126, 0, 0.45); }
}

.step-card.newly-active {
    animation: glowFade 1.5s ease-out;
}

@media (max-width: 600px) {
    body { padding: 1.25rem 0.85rem; }

    .hero-section { padding: 1.75rem 1.25rem 1.5rem; }

    .how-it-works {
        flex-direction: column;
    }

    .hero-top {
        flex-direction: column;
        align-items: flex-start;
        gap: 1rem;
    }

    .steps-container {
        padding-left: 2.6rem;
    }

    .steps-container::before {
        left: 1.15rem;
    }

    .step-card::before {
        left: -2.15rem;
        width: 1.75rem;
        height: 1.75rem;
        font-size: 0.7rem;
        top: 1.2rem;
    }

    .step-header {
        padding: 1.1rem 1.15rem;
    }

    .step-header h2 {
        font-size: 1rem;
    }
}

@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}