/* --- MATERIAL 3 COLOR SYSTEM & ANIMATION TOKENS --- */
:root[data-theme="light"] {
    --md-sys-color-primary: #0061a4;
    --md-sys-color-on-primary: #ffffff;
    --md-sys-color-primary-container: #d1e4ff;
    --md-sys-color-on-primary-container: #001d36;

    --md-sys-color-secondary: #535f70;
    --md-sys-color-secondary-container: #d7e3f7;
    --md-sys-color-on-secondary-container: #101c2b;

    --md-sys-color-surface: #fdfcff;
    --md-sys-color-surface-container: #f0f0f4;
    --md-sys-color-surface-variant: #dfe2eb;
    --md-sys-color-on-surface: #1a1c1e;
    --md-sys-color-on-surface-variant: #43474e;

    --md-sys-color-outline: #73777f;
    --md-sys-color-outline-variant: #c3c7cf;

    --md-elevation-1: 0px 1px 3px 1px rgba(0, 0, 0, 0.1), 0px 1px 2px 0px rgba(0, 0, 0, 0.2);
    --md-elevation-3: 0px 4px 12px 4px rgba(0, 0, 0, 0.08), 0px 2px 4px 0px rgba(0, 0, 0, 0.16);
    --md-elevation-hover: 0px 8px 24px 6px rgba(0, 0, 0, 0.1), 0px 4px 8px 0px rgba(0, 0, 0, 0.15);
}

:root[data-theme="dark"] {
    --md-sys-color-primary: #9ecaef;
    --md-sys-color-on-primary: #003258;
    --md-sys-color-primary-container: #00497d;
    --md-sys-color-on-primary-container: #d1e4ff;

    --md-sys-color-secondary: #bbc7db;
    --md-sys-color-secondary-container: #3b4858;
    --md-sys-color-on-secondary-container: #d7e3f7;

    --md-sys-color-surface: #1a1c1e;
    --md-sys-color-surface-container: #1e2022;
    --md-sys-color-surface-variant: #43474e;
    --md-sys-color-on-surface: #e2e2e6;
    --md-sys-color-on-surface-variant: #c3c7cf;

    --md-sys-color-outline: #8d9199;
    --md-sys-color-outline-variant: #43474e;

    --md-elevation-1: 0px 1px 3px 1px rgba(0, 0, 0, 0.4), 0px 1px 2px 0px rgba(0, 0, 0, 0.5);
    --md-elevation-3: 0px 4px 12px 4px rgba(0, 0, 0, 0.3), 0px 2px 4px 0px rgba(0, 0, 0, 0.4);
    --md-elevation-hover: 0px 8px 24px 6px rgba(0, 0, 0, 0.4), 0px 4px 8px 0px rgba(0, 0, 0, 0.5);
}

:root {
    --m3-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
    --m3-smooth: cubic-bezier(0.2, 0, 0, 1);
    --m3-squish: cubic-bezier(0.22, 1, 0.36, 1);
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    -webkit-tap-highlight-color: transparent;
}

body {
    font-family: 'Roboto', system-ui, -apple-system, sans-serif;
    background-color: var(--md-sys-color-surface-container);
    color: var(--md-sys-color-on-surface);
    transition: background-color 0.5s var(--m3-smooth), color 0.5s var(--m3-smooth);
    min-height: 100vh;
}

.top-app-bar {
    position: sticky;
    top: 0;
    background-color: var(--md-sys-color-surface);
    padding: 1rem 2rem;
    z-index: 100;
    transition: box-shadow 0.3s var(--m3-smooth);
}

.top-app-bar.scrolled {
    box-shadow: var(--md-elevation-1);
}

.header-content {
    max-width: 1400px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 2rem;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--md-sys-color-primary);
    letter-spacing: -0.5px;
    cursor: pointer;
    transition: transform 0.4s var(--m3-spring);
}

.logo:active {
    transform: scale(0.92);
}

.search-bar {
    flex-grow: 1;
    max-width: 600px;
    position: relative;
    display: flex;
    align-items: center;
    transition: transform 0.4s var(--m3-spring);
}

.search-icon {
    position: absolute;
    left: 1.25rem;
    color: var(--md-sys-color-on-surface-variant);
    transition: color 0.3s var(--m3-smooth), transform 0.4s var(--m3-spring);
}

.search-bar input {
    width: 100%;
    padding: 1.2rem 1.2rem 1.2rem 3.5rem;
    border-radius: 9999px;
    border: 2px solid transparent;
    background-color: var(--md-sys-color-surface-variant);
    color: var(--md-sys-color-on-surface);
    font-size: 1.05rem;
    transition: all 0.4s var(--m3-spring);
}

.search-bar input:focus {
    outline: none;
    background-color: var(--md-sys-color-surface);
    border-color: var(--md-sys-color-primary);
    box-shadow: var(--md-elevation-3);
    transform: scale(1.02);
}

.search-bar input:focus~.search-icon {
    color: var(--md-sys-color-primary);
    transform: scale(1.1) rotate(-5deg);
}

.icon-btn {
    background: transparent;
    border: none;
    color: var(--md-sys-color-on-surface);
    cursor: pointer;
    padding: 0.75rem;
    border-radius: 50%;
    transition: all 0.4s var(--m3-spring);
    display: flex;
    align-items: center;
    justify-content: center;
}

.icon-btn:hover {
    background-color: var(--md-sys-color-surface-variant);
    transform: scale(1.1) rotate(10deg);
}

.icon-btn:active {
    transform: scale(0.85);
}

.showcase-container {
    max-width: 1400px;
    margin: 3rem auto;
    padding: 0 2rem;
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
    gap: 2.5rem;
}

.component-card {
    background-color: var(--md-sys-color-surface);
    border-radius: 28px;
    padding: 2.5rem 2rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 2rem;
    text-align: center;
    border: 1px solid var(--md-sys-color-outline-variant);
    transition: all 0.5s var(--m3-spring);
    transform-origin: center bottom;
}

.component-card:hover {
    transform: translateY(-8px) scale(1.01);
    box-shadow: var(--md-elevation-hover);
    border-color: transparent;
}

.component-card h3 {
    font-size: 0.85rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: var(--md-sys-color-outline);
    margin-bottom: auto;
    width: 100%;
}

.m3-btn {
    position: relative;
    padding: 0.75rem 1.75rem;
    border-radius: 9999px;
    font-weight: 600;
    font-size: 0.95rem;
    cursor: pointer;
    border: 1px solid transparent;
    transition: all 0.4s var(--m3-spring);
    overflow: hidden;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

.m3-btn:active {
    transform: scale(0.92);
}

.m3-btn-filled {
    background-color: var(--md-sys-color-primary);
    color: var(--md-sys-color-on-primary);
    box-shadow: var(--md-elevation-1);
}

.m3-btn-filled:hover {
    box-shadow: var(--md-elevation-3);
    transform: translateY(-2px);
}

.m3-btn-filled::after {
    content: '';
    position: absolute;
    inset: 0;
    background-color: var(--md-sys-color-on-primary);
    opacity: 0;
    transition: opacity 0.2s var(--m3-smooth);
}

.m3-btn-filled:hover::after {
    opacity: 0.08;
}

.m3-btn-filled:active::after {
    opacity: 0.12;
}

.m3-btn-tonal {
    background-color: var(--md-sys-color-secondary-container);
    color: var(--md-sys-color-on-secondary-container);
}

.m3-btn-tonal:hover {
    background-color: var(--md-sys-color-surface-variant);
    transform: translateY(-2px);
}

.m3-btn-outlined {
    background-color: transparent;
    border-color: var(--md-sys-color-outline);
    color: var(--md-sys-color-primary);
}

.m3-btn-outlined:hover {
    background-color: var(--md-sys-color-primary-container);
    border-color: transparent;
    transform: translateY(-2px);
}

.m3-btn-text {
    background-color: transparent;
    color: var(--md-sys-color-primary);
}

.m3-btn-text:hover {
    background-color: var(--md-sys-color-primary-container);
}

.m3-fab {
    width: 64px;
    height: 64px;
    border-radius: 20px;
    background-color: var(--md-sys-color-primary-container);
    color: var(--md-sys-color-on-primary-container);
    border: none;
    cursor: pointer;
    box-shadow: var(--md-elevation-3);
    display: flex;
    justify-content: center;
    align-items: center;
    transition: all 0.4s var(--m3-spring);
}

.m3-fab:hover {
    box-shadow: var(--md-elevation-hover);
    transform: translateY(-4px) scale(1.05);
}

.m3-fab:active {
    transform: scale(0.9);
    border-radius: 28px;
}

.m3-fab-extended {
    padding: 1.25rem 2rem;
    border-radius: 20px;
    background-color: var(--md-sys-color-primary-container);
    color: var(--md-sys-color-on-primary-container);
    border: none;
    cursor: pointer;
    box-shadow: var(--md-elevation-3);
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 0.75rem;
    font-weight: 600;
    font-size: 1rem;
    transition: all 0.4s var(--m3-spring);
}

.m3-fab-extended:hover {
    box-shadow: var(--md-elevation-hover);
    transform: translateY(-4px) scale(1.03);
}

.m3-fab-extended:active {
    transform: scale(0.92);
}

.m3-input-container {
    position: relative;
    width: 100%;
}

.m3-input {
    width: 100%;
    padding: 1.2rem;
    border: 2px solid var(--md-sys-color-outline-variant);
    border-radius: 12px;
    background: transparent;
    color: var(--md-sys-color-on-surface);
    font-size: 1rem;
    outline: none;
    transition: all 0.3s var(--m3-spring);
}

.m3-input:focus {
    border-color: var(--md-sys-color-primary);
    transform: scale(1.02);
}

.m3-filled-input .m3-input {
    background-color: var(--md-sys-color-surface-variant);
    border: none;
    border-bottom: 2px solid var(--md-sys-color-on-surface-variant);
    border-radius: 12px 12px 4px 4px;
}

.m3-filled-input .m3-input:focus {
    border-bottom-color: var(--md-sys-color-primary);
    background-color: var(--md-sys-color-surface);
}

.m3-label {
    position: absolute;
    left: 1.2rem;
    top: 1.2rem;
    color: var(--md-sys-color-on-surface-variant);
    transition: all 0.3s var(--m3-spring);
    pointer-events: none;
    background: transparent;
}

.m3-input:focus~.m3-label,
.m3-input:not(:placeholder-shown)~.m3-label {
    top: -0.6rem;
    left: 0.8rem;
    font-size: 0.75rem;
    font-weight: 600;
    background-color: var(--md-sys-color-surface);
    padding: 0 0.5rem;
    color: var(--md-sys-color-primary);
    border-radius: 4px;
}

.m3-card {
    border-radius: 24px;
    padding: 2rem;
    text-align: left;
    width: 100%;
    transition: all 0.4s var(--m3-spring);
    cursor: pointer;
}

.m3-card:active {
    transform: scale(0.96);
}

.m3-card h2 {
    font-size: 1.4rem;
    margin-bottom: 0.75rem;
    color: var(--md-sys-color-on-surface);
}

.m3-card p {
    color: var(--md-sys-color-on-surface-variant);
    font-size: 0.95rem;
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

.m3-card-elevated {
    background-color: var(--md-sys-color-surface);
    box-shadow: var(--md-elevation-1);
}

.m3-card-elevated:hover {
    box-shadow: var(--md-elevation-3);
}

.m3-card-filled {
    background-color: var(--md-sys-color-surface-variant);
}

.m3-card-filled:hover {
    background-color: var(--md-sys-color-secondary-container);
}

.m3-card-outlined {
    border: 1px solid var(--md-sys-color-outline-variant);
}

.m3-card-outlined:hover {
    border-color: var(--md-sys-color-outline);
}

.card-actions {
    display: flex;
    justify-content: flex-end;
    gap: 0.5rem;
}

.chip-group {
    display: flex;
    gap: 0.75rem;
    flex-wrap: wrap;
    justify-content: center;
}

.m3-chip {
    padding: 0.5rem 1.25rem;
    border-radius: 12px;
    border: 1px solid var(--md-sys-color-outline-variant);
    background: var(--md-sys-color-surface);
    color: var(--md-sys-color-on-surface);
    cursor: pointer;
    font-weight: 500;
    transition: all 0.4s var(--m3-spring);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.m3-chip:hover {
    background-color: var(--md-sys-color-surface-variant);
    transform: translateY(-2px);
    border-radius: 16px;
}

.m3-chip:active {
    transform: scale(0.9);
}

.m3-chip.active {
    background-color: var(--md-sys-color-secondary-container);
    color: var(--md-sys-color-on-secondary-container);
    border-color: transparent;
}

.chip-icon,
.chip-close {
    font-size: 1.1rem;
    transition: transform 0.3s var(--m3-spring);
}

.chip-close:hover {
    transform: scale(1.3) rotate(90deg);
    color: var(--md-sys-color-primary);
}

.m3-switch {
    position: relative;
    display: inline-block;
    width: 60px;
    height: 36px;
}

.m3-switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

.slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: var(--md-sys-color-surface-variant);
    border: 2px solid var(--md-sys-color-outline);
    transition: all 0.4s var(--m3-spring);
    border-radius: 34px;
}

.slider:before {
    position: absolute;
    content: "";
    height: 20px;
    width: 20px;
    left: 6px;
    bottom: 6px;
    background-color: var(--md-sys-color-outline);
    transition: all 0.4s var(--m3-spring);
    border-radius: 50%;
}

input:active+.slider:before {
    width: 28px;
    border-radius: 12px;
}

input:checked+.slider {
    background-color: var(--md-sys-color-primary);
    border-color: var(--md-sys-color-primary);
}

input:checked+.slider:before {
    transform: translateX(24px);
    background-color: var(--md-sys-color-on-primary);
    height: 28px;
    width: 28px;
    bottom: 2px;
}

input:checked:active+.slider:before {
    width: 32px;
    transform: translateX(18px);
}

.m3-bottom-nav {
    display: flex;
    justify-content: space-around;
    width: 100%;
    background-color: var(--md-sys-color-surface-container);
    padding: 0.75rem 0.5rem;
    border-radius: 24px;
    box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.02);
}

.nav-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.25rem;
    cursor: pointer;
    color: var(--md-sys-color-on-surface-variant);
    font-size: 0.8rem;
    font-weight: 600;
    transition: transform 0.3s var(--m3-spring);
}

.nav-item:active {
    transform: translateY(4px) scale(0.95);
}

.nav-icon-container {
    padding: 0.25rem 1.25rem;
    border-radius: 20px;
    transition: all 0.5s var(--m3-spring);
}

.nav-item.active {
    color: var(--md-sys-color-on-surface);
}

.nav-item.active .nav-icon-container {
    background-color: var(--md-sys-color-secondary-container);
    padding: 0.25rem 1.75rem;
}

.no-results {
    text-align: center;
    padding: 4rem;
    color: var(--md-sys-color-on-surface-variant);
    animation: fadeScaleIn 0.4s var(--m3-spring);
}

@keyframes fadeScaleIn {
    0% {
        opacity: 0;
        transform: scale(0.9);
    }

    100% {
        opacity: 1;
        transform: scale(1);
    }
}

.no-results span {
    font-size: 4rem;
    margin-bottom: 1rem;
    color: var(--md-sys-color-outline-variant);
}

.hidden {
    display: none !important;
}