/* ==========================================
   Neumorphism Styles - Enhanced & Polished
   ========================================== */

/* ========== Base Neumorphic Elements ========== */

/* Neumorphic Card - Raised */
.neu-card {
    background: var(--surface);
    border-radius: var(--radius-xl);
    box-shadow: var(--neu-shadow), var(--neu-shadow-invert);
    transition: all var(--transition-smooth);
    position: relative;
    overflow: hidden;
}

.neu-card::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg,
            rgba(255, 255, 255, 0.1) 0%,
            transparent 50%,
            rgba(0, 0, 0, 0.02) 100%);
    pointer-events: none;
}

.neu-card:hover {
    box-shadow: var(--neu-shadow-hover);
    transform: translateY(-4px);
}

/* Neumorphic Card - Flat (for containers) */
.neu-flat {
    background: var(--surface);
    border-radius: var(--radius-xl);
    box-shadow: var(--neu-shadow), var(--neu-shadow-invert);
}

/* Neumorphic Pressed/Inset */
.neu-pressed {
    background: var(--surface);
    border-radius: var(--radius-lg);
    box-shadow: var(--neu-shadow-pressed);
}

/* ========== Neumorphic Buttons - Enhanced ========== */

.neu-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: var(--space-4) var(--space-8);
    background: var(--surface);
    border-radius: var(--radius-xl);
    box-shadow: var(--neu-shadow), var(--neu-shadow-invert);
    font-family: var(--font-primary);
    font-weight: var(--font-weight-semibold);
    font-size: var(--font-size-base);
    color: var(--text);
    cursor: pointer;
    transition: all var(--transition-smooth);
    border: none;
    outline: none;
    user-select: none;
    position: relative;
    overflow: hidden;
}

/* Subtle gradient overlay */
.neu-btn::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg,
            rgba(255, 255, 255, 0.1) 0%,
            transparent 50%);
    pointer-events: none;
}

.neu-btn:hover {
    box-shadow: var(--neu-shadow-hover);
    transform: translateY(-3px);
}

.neu-btn:active {
    box-shadow: var(--neu-shadow-pressed);
    transform: translateY(0) scale(0.98);
}

.neu-btn:focus-visible {
    outline: none;
    box-shadow:
        var(--neu-shadow),
        var(--neu-shadow-invert),
        0 0 0 3px rgba(102, 126, 234, 0.4);
}

/* Primary Button - Enhanced */
.neu-btn-primary {
    background: var(--gradient-hero-1);
    color: white;
    box-shadow:
        0 4px 20px rgba(102, 126, 234, 0.4),
        0 2px 4px rgba(0, 0, 0, 0.1),
        inset 0 1px 0 rgba(255, 255, 255, 0.2);
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.2);
}

.neu-btn-primary::before {
    background: linear-gradient(135deg,
            rgba(255, 255, 255, 0.25) 0%,
            transparent 50%);
}

.neu-btn-primary:hover {
    box-shadow:
        0 8px 30px rgba(102, 126, 234, 0.5),
        0 4px 8px rgba(0, 0, 0, 0.1),
        inset 0 1px 0 rgba(255, 255, 255, 0.2);
    transform: translateY(-3px);
}

.neu-btn-primary:active {
    box-shadow:
        0 2px 10px rgba(102, 126, 234, 0.4),
        inset 0 2px 4px rgba(0, 0, 0, 0.2);
    transform: translateY(0) scale(0.98);
}

/* Secondary/Ghost Button */
.neu-btn-secondary {
    background: transparent;
    box-shadow: none;
    color: var(--primary-500);
    border: 2px solid var(--primary-400);
}

.neu-btn-secondary:hover {
    background: rgba(102, 126, 234, 0.1);
    box-shadow: none;
    transform: translateY(-2px);
}

/* Small Button */
.neu-btn-sm {
    padding: var(--space-3) var(--space-5);
    font-size: var(--font-size-sm);
    border-radius: var(--radius-lg);
}

/* Large Button */
.neu-btn-lg {
    padding: var(--space-5) var(--space-10);
    font-size: var(--font-size-md);
    border-radius: var(--radius-xl);
}

/* Icon Button - Enhanced */
.neu-btn-icon {
    width: 48px;
    height: 48px;
    padding: 0;
    border-radius: var(--radius-full);
}

.neu-btn-icon.sm {
    width: 42px;
    height: 42px;
}

.neu-btn-icon.xs {
    width: 36px;
    height: 36px;
}

.neu-btn-icon svg {
    width: 20px;
    height: 20px;
    transition: all var(--transition-smooth);
}

.neu-btn-icon:hover svg {
    transform: scale(1.1);
}

/* ========== Neumorphic Inputs - Enhanced ========== */

.neu-input-wrapper {
    position: relative;
    width: 100%;
}

.neu-input {
    width: 100%;
    padding: var(--space-4) var(--space-5);
    background: var(--surface);
    border-radius: var(--radius-xl);
    box-shadow: var(--neu-shadow-pressed);
    font-family: var(--font-primary);
    font-size: var(--font-size-base);
    color: var(--text);
    border: 2px solid transparent;
    transition: all var(--transition-smooth);
}

.neu-input:hover {
    border-color: rgba(102, 126, 234, 0.2);
}

.neu-input:focus {
    border-color: var(--primary-500);
    box-shadow:
        var(--neu-shadow-pressed),
        0 0 0 4px rgba(102, 126, 234, 0.15);
}

.neu-input::placeholder {
    color: var(--text-muted);
    transition: opacity var(--transition-fast);
}

.neu-input:focus::placeholder {
    opacity: 0.5;
}

/* Textarea */
.neu-textarea {
    min-height: 130px;
    resize: vertical;
    line-height: var(--line-height-relaxed);
}

/* Input Label - Enhanced */
.neu-label {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    margin-bottom: var(--space-3);
    font-weight: var(--font-weight-medium);
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
}

.neu-label svg {
    width: 16px;
    height: 16px;
    opacity: 0.7;
}

/* ========== Neumorphic Toggle - Enhanced ========== */

.neu-toggle {
    position: relative;
    width: 64px;
    height: 34px;
    background: var(--surface);
    border-radius: var(--radius-full);
    box-shadow: var(--neu-shadow-pressed);
    cursor: pointer;
    transition: all var(--transition-smooth);
}

.neu-toggle::after {
    content: '';
    position: absolute;
    top: 5px;
    left: 5px;
    width: 24px;
    height: 24px;
    background: var(--surface);
    border-radius: 50%;
    box-shadow:
        3px 3px 6px rgba(0, 0, 0, 0.15),
        -2px -2px 4px rgba(255, 255, 255, 0.5);
    transition: all var(--transition-smooth);
}

.neu-toggle.active {
    background: linear-gradient(135deg,
            rgba(102, 126, 234, 0.2) 0%,
            rgba(118, 75, 162, 0.2) 100%);
}

.neu-toggle.active::after {
    transform: translateX(30px);
    background: var(--gradient-hero-1);
    box-shadow:
        0 2px 10px rgba(102, 126, 234, 0.4);
}

/* ========== Neumorphic Divider ========== */

.neu-divider {
    height: 2px;
    background: var(--surface);
    border-radius: 1px;
    box-shadow:
        inset 1px 1px 2px rgba(0, 0, 0, 0.1),
        1px 1px 2px rgba(255, 255, 255, 0.5);
    margin: var(--space-8) 0;
}

/* ========== Thought Card - Enhanced ========== */

.thought-card {
    position: relative;
    padding: var(--space-8);
    background: var(--surface);
    border-radius: var(--radius-2xl);
    box-shadow: var(--neu-shadow), var(--neu-shadow-invert);
    transition: all var(--transition-smooth);
    overflow: hidden;
}

/* Decorative gradient accent */
.thought-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient-hero-1);
    opacity: 0;
    transition: opacity var(--transition-smooth);
}

.thought-card:hover {
    box-shadow: var(--neu-shadow-hover);
    transform: translateY(-6px);
}

.thought-card:hover::before {
    opacity: 1;
}

.thought-card__quote {
    font-family: var(--font-display);
    font-size: var(--font-size-lg);
    font-style: italic;
    line-height: var(--line-height-relaxed);
    color: var(--text);
    margin-bottom: var(--space-5);
    position: relative;
    padding-left: var(--space-6);
}

.thought-card__quote::before {
    content: '"';
    position: absolute;
    left: 0;
    top: -10px;
    font-family: Georgia, serif;
    font-size: 4rem;
    color: var(--primary-400);
    opacity: 0.3;
    line-height: 1;
}

.thought-card__author {
    font-family: var(--font-primary);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    color: var(--text-muted);
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.thought-card__author::before {
    content: '';
    width: 20px;
    height: 2px;
    background: var(--gradient-hero-1);
    border-radius: 1px;
}

.thought-card__actions {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    margin-top: var(--space-6);
    padding-top: var(--space-5);
    border-top: 1px solid rgba(128, 128, 128, 0.1);
}

/* Like Button State - Enhanced */
.like-btn {
    position: relative;
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.like-btn .like-count {
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-semibold);
    min-width: 20px;
    text-align: center;
}

.like-btn.liked {
    color: #ef4444;
}

.like-btn.liked svg {
    fill: #ef4444;
    animation: heartBeat 0.6s ease;
}

/* Download Button */
.download-btn {
    color: var(--text-muted);
}

.download-btn:hover {
    color: var(--primary-500);
}

/* ========== Neumorphic Progress Bar ========== */

.neu-progress {
    width: 100%;
    height: 8px;
    background: var(--surface);
    border-radius: var(--radius-full);
    box-shadow: var(--neu-shadow-pressed);
    overflow: hidden;
}

.neu-progress__bar {
    height: 100%;
    background: var(--gradient-hero-1);
    border-radius: inherit;
    transition: width var(--transition-smooth);
}

/* ========== Neumorphic Chip/Tag ========== */

.neu-chip {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-4);
    background: var(--surface);
    border-radius: var(--radius-full);
    box-shadow: var(--neu-shadow), var(--neu-shadow-invert);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    color: var(--text-secondary);
    transition: all var(--transition-smooth);
}

.neu-chip:hover {
    box-shadow: var(--neu-shadow-hover);
    transform: translateY(-2px);
}

.neu-chip--active {
    background: var(--gradient-hero-1);
    color: white;
    box-shadow: 0 2px 10px rgba(102, 126, 234, 0.3);
}

/* ========== Neumorphic Skeleton Loading ========== */

.neu-skeleton {
    background: var(--surface);
    border-radius: var(--radius-lg);
    box-shadow: var(--neu-shadow-pressed);
    position: relative;
    overflow: hidden;
}

.neu-skeleton::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(90deg,
            transparent 0%,
            rgba(255, 255, 255, 0.3) 50%,
            transparent 100%);
    animation: shimmer 1.5s infinite;
}