/* ==========================================================================
   Nickname Generator — Complete Redesign
   Aesthetic: NEBULA/COSMIC — Matching EchoPlex ecosystem
   ========================================================================== */

:root {
    --space-deep: #05030f;
    --space-mid: #0b0720;
    --space-light: #140d30;
    --space-card: rgba(20, 13, 48, 0.6);

    --nebula-violet: #7c3aed;
    --nebula-violet-bright: #a78bfa;
    --nebula-cyan: #22d3ee;
    --nebula-cyan-bright: #67e8f9;
    --nebula-magenta: #ec4899;
    --nebula-gold: #fbbf24;
    --nebula-rose: #f43f5e;
    --nebula-green: #34d399;

    --text-white: #f0ecff;
    --text-dim: #b8b0d8;
    --text-mute: #6f6390;

    --font-display: 'Orbitron', sans-serif;
    --font-body: 'Sora', sans-serif;
    --font-mono: 'Space Mono', monospace;

    --radius: 16px;
    --radius-sm: 10px;
    --transition: 0.3s cubic-bezier(0.23, 1, 0.32, 1);
}

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

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

body {
    font-family: var(--font-body);
    background: var(--space-deep);
    color: var(--text-white);
    line-height: 1.6;
    overflow-x: hidden;
    min-height: 100vh;
}

::-webkit-scrollbar {
    width: 5px;
}
::-webkit-scrollbar-track {
    background: var(--space-deep);
}
::-webkit-scrollbar-thumb {
    background: linear-gradient(180deg, var(--nebula-violet), var(--nebula-cyan));
    border-radius: 10px;
}

.scroll-progress {
    position: fixed;
    top: 0;
    left: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--nebula-violet), var(--nebula-cyan), var(--nebula-magenta));
    z-index: 9999;
    width: 0%;
    transition: width 0.1s linear;
}

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

.gradient-orb {
    position: fixed;
    border-radius: 50%;
    filter: blur(100px);
    pointer-events: none;
    z-index: 0;
    opacity: 0.15;
}

.orb-1 {
    width: 400px;
    height: 400px;
    top: -150px;
    right: -100px;
    background: var(--nebula-violet);
    animation: orb-float 20s ease-in-out infinite;
}
.orb-2 {
    width: 300px;
    height: 300px;
    bottom: -100px;
    left: -100px;
    background: var(--nebula-cyan);
    opacity: 0.08;
    animation: orb-float 25s ease-in-out infinite reverse;
}

@keyframes orb-float {
    0%,
    100% {
        transform: translate(0, 0) scale(1);
    }
    33% {
        transform: translate(-30px, 20px) scale(1.1);
    }
    66% {
        transform: translate(20px, -30px) scale(0.9);
    }
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    position: relative;
    z-index: 1;
}

/* ---------- BUTTONS ---------- */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 24px;
    border-radius: 999px;
    font-family: var(--font-body);
    font-weight: 600;
    font-size: 0.9rem;
    text-decoration: none;
    border: none;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.23, 1, 0.32, 1);
}

.btn-primary {
    background: linear-gradient(135deg, var(--nebula-violet), #6d28d9);
    color: #fff;
    box-shadow: 0 8px 30px rgba(124, 58, 237, 0.25);
}
.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 40px rgba(124, 58, 237, 0.4);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.04);
    color: var(--text-white);
    border: 1px solid rgba(255, 255, 255, 0.06);
}
.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.08);
    transform: translateY(-2px);
}

.btn-large {
    padding: 16px 40px;
    font-size: 1.05rem;
}
.btn-small {
    padding: 8px 16px;
    font-size: 0.8rem;
}

.btn:disabled {
    opacity: 0.4;
    cursor: not-allowed;
    transform: none !important;
}

/* ---------- NAV ---------- */
.main-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(5, 3, 15, 0.7);
    backdrop-filter: blur(20px) saturate(1.4);
    border-bottom: 1px solid rgba(255, 255, 255, 0.03);
    padding: 12px 0;
    height: 64px;
}

.main-header .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    color: var(--text-dim);
    font-size: 0.85rem;
    font-weight: 500;
    transition: color 0.3s ease;
}
.logo:hover {
    color: var(--text-white);
}
.logo i {
    font-size: 1rem;
}

/* ---------- MAIN ---------- */
.main-container {
    padding: 80px 0 40px;
    min-height: 100vh;
}

.generator-card {
    max-width: 800px;
    margin: 0 auto;
    padding: 40px;
    border-radius: var(--radius);
    border: 1px solid rgba(255, 255, 255, 0.03);
    background: var(--space-card);
    backdrop-filter: blur(10px);
}

.generator-header {
    text-align: center;
    margin-bottom: 32px;
}

.generator-badge {
    display: inline-block;
    font-family: var(--font-mono);
    font-size: 0.6rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--nebula-cyan-bright);
    background: rgba(34, 211, 238, 0.06);
    padding: 4px 14px;
    border-radius: 999px;
    border: 1px solid rgba(34, 211, 238, 0.06);
    margin-bottom: 12px;
}

.generator-title {
    font-family: var(--font-display);
    font-size: clamp(1.8rem, 3.5vw, 2.8rem);
    font-weight: 700;
    background: linear-gradient(135deg, var(--nebula-cyan-bright), var(--nebula-violet-bright));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.generator-subtitle {
    color: var(--text-dim);
    font-size: 0.95rem;
    max-width: 500px;
    margin: 0 auto;
}

/* ---------- SECTIONS ---------- */
.section-label {
    display: block;
    font-size: 0.7rem;
    font-weight: 600;
    color: var(--text-mute);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin-bottom: 8px;
}

.category-section {
    margin-bottom: 24px;
}

.category-grid {
    display: grid;
    grid-template-columns: repeat(8, 1fr);
    gap: 6px;
    margin-bottom: 12px;
}

.category-grid button {
    padding: 6px 4px;
    border-radius: var(--radius-sm);
    border: 1px solid rgba(255, 255, 255, 0.04);
    background: rgba(255, 255, 255, 0.02);
    color: var(--text-dim);
    font-family: var(--font-body);
    font-size: 0.6rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    text-align: center;
    line-height: 1.2;
}
.category-grid button:hover {
    background: rgba(255, 255, 255, 0.04);
    border-color: rgba(124, 58, 237, 0.1);
}
.category-grid button.active {
    background: rgba(124, 58, 237, 0.1);
    border-color: var(--nebula-violet);
    color: var(--text-white);
}

@media (max-width: 768px) {
    .category-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}
@media (max-width: 480px) {
    .category-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    .category-grid button {
        font-size: 0.5rem;
        padding: 4px 2px;
    }
}

.custom-section {
    margin-bottom: 24px;
    display: none;
}
.custom-section.visible {
    display: block;
}

.custom-section textarea {
    width: 100%;
    padding: 12px 16px;
    border-radius: var(--radius-sm);
    border: 1px solid rgba(255, 255, 255, 0.06);
    background: rgba(255, 255, 255, 0.02);
    color: var(--text-white);
    font-family: var(--font-body);
    font-size: 0.9rem;
    resize: vertical;
    outline: none;
    transition: border-color 0.3s ease;
    min-height: 80px;
}
.custom-section textarea:focus {
    border-color: var(--nebula-violet);
}

.filters-section {
    margin-bottom: 24px;
}

.filter-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 12px;
}

.filter-group {
    display: flex;
    flex-direction: column;
    gap: 4px;
}
.filter-group label {
    font-size: 0.6rem;
    color: var(--text-mute);
    font-weight: 500;
}
.filter-group input {
    padding: 6px 10px;
    border-radius: var(--radius-sm);
    border: 1px solid rgba(255, 255, 255, 0.06);
    background: rgba(255, 255, 255, 0.02);
    color: var(--text-white);
    font-family: var(--font-body);
    font-size: 0.85rem;
    outline: none;
    transition: border-color 0.3s ease;
}
.filter-group input:focus {
    border-color: var(--nebula-violet);
}
.filter-group input[type="number"] {
    width: 100%;
}

@media (max-width: 768px) {
    .filter-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}
@media (max-width: 480px) {
    .filter-grid {
        grid-template-columns: 1fr 1fr;
    }
}

.markov-section {
    margin-bottom: 24px;
}

.markov-control {
    display: flex;
    align-items: center;
    gap: 16px;
}
.markov-control input[type="range"] {
    flex: 1;
    height: 4px;
    -webkit-appearance: none;
    appearance: none;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 2px;
    outline: none;
}
.markov-control input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: var(--nebula-violet);
    cursor: pointer;
}
.markov-control span {
    font-family: var(--font-mono);
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--nebula-cyan-bright);
    min-width: 24px;
    text-align: center;
}

.markov-hint {
    font-size: 0.65rem;
    color: var(--text-mute);
    margin-top: 4px;
}

/* ---------- OUTPUT ---------- */
.output-section {
    margin-top: 24px;
    padding-top: 24px;
    border-top: 1px solid rgba(255, 255, 255, 0.03);
}

.output-display {
    padding: 20px 24px;
    border-radius: var(--radius-sm);
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(255, 255, 255, 0.04);
    text-align: center;
    min-height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
}
.output-display span {
    font-family: var(--font-display);
    font-size: 1.6rem;
    font-weight: 700;
    color: var(--nebula-cyan-bright);
    word-break: break-word;
}
.output-display span.placeholder {
    color: var(--text-mute);
    font-weight: 400;
    font-size: 0.9rem;
    font-family: var(--font-body);
}

.output-actions {
    display: flex;
    gap: 8px;
    justify-content: center;
    margin-top: 12px;
}

/* ---------- SAVED ---------- */
.saved-section {
    margin-top: 32px;
    padding-top: 24px;
    border-top: 1px solid rgba(255, 255, 255, 0.03);
}

.saved-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 12px;
    margin-bottom: 16px;
}

.saved-title {
    font-family: var(--font-display);
    font-size: 1.1rem;
    font-weight: 600;
}

.collection-controls {
    display: flex;
    gap: 8px;
    align-items: center;
}
.collection-controls input {
    padding: 6px 12px;
    border-radius: var(--radius-sm);
    border: 1px solid rgba(255, 255, 255, 0.06);
    background: rgba(255, 255, 255, 0.02);
    color: var(--text-white);
    font-family: var(--font-body);
    font-size: 0.8rem;
    outline: none;
    width: 150px;
}
.collection-controls input:focus {
    border-color: var(--nebula-violet);
}

.collection-selector {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 12px;
}
.collection-selector label {
    font-size: 0.7rem;
    color: var(--text-mute);
    font-weight: 500;
}
.collection-selector select {
    padding: 6px 12px;
    border-radius: var(--radius-sm);
    border: 1px solid rgba(255, 255, 255, 0.06);
    background: rgba(255, 255, 255, 0.02);
    color: var(--text-white);
    font-family: var(--font-body);
    font-size: 0.8rem;
    outline: none;
    cursor: pointer;
}
.collection-selector select option {
    background: var(--space-mid);
}

.saved-list {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    min-height: 40px;
    padding: 8px;
    border-radius: var(--radius-sm);
    background: rgba(255, 255, 255, 0.01);
    border: 1px dashed rgba(255, 255, 255, 0.03);
}

.saved-item {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 4px 12px 4px 16px;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.04);
    font-size: 0.8rem;
    color: var(--text-dim);
    transition: all 0.3s ease;
}
.saved-item:hover {
    background: rgba(255, 255, 255, 0.06);
}
.saved-item .delete-btn {
    background: none;
    border: none;
    color: var(--text-mute);
    cursor: pointer;
    font-size: 0.7rem;
    padding: 2px 4px;
    transition: color 0.3s ease;
}
.saved-item .delete-btn:hover {
    color: var(--nebula-rose);
}

.empty-message {
    color: var(--text-mute);
    font-size: 0.8rem;
    font-style: italic;
    width: 100%;
    text-align: center;
    padding: 12px 0;
}

/* ---------- FOOTER ---------- */
.main-footer {
    border-top: 1px solid rgba(255, 255, 255, 0.02);
    padding: 16px 0;
    text-align: center;
    background: rgba(5, 3, 15, 0.6);
    backdrop-filter: blur(10px);
    margin-top: 20px;
}
.main-footer p {
    font-size: 0.7rem;
    color: var(--text-mute);
}

/* ---------- RESPONSIVE ---------- */
@media (max-width: 768px) {
    .main-header {
        height: 56px;
        padding: 8px 0;
    }
    .main-container {
        padding: 72px 0 32px;
    }
    .generator-card {
        padding: 24px 20px;
        margin: 0 12px;
    }
    .saved-header {
        flex-direction: column;
        align-items: stretch;
    }
    .collection-controls {
        flex-wrap: wrap;
    }
    .collection-controls input {
        flex: 1;
        min-width: 120px;
    }
}

@media (max-width: 480px) {
    .generator-card {
        padding: 16px;
        margin: 0 8px;
    }
    .logo span {
        display: none;
    }
    .output-display span {
        font-size: 1.2rem;
    }
    .filter-grid {
        grid-template-columns: 1fr 1fr;
    }
    .collection-controls input {
        width: 100%;
    }
}