:root {
    --header-h: 52px;

    /** Base colors */
    --clr-dark-a0: lch(0% 0 0);
    --clr-light-a0: lch(100% 0 0);

    /** Theme primary colors — gold/orange */
    --clr-primary-a0: lch(62.9% 62.7 81.5);
    --clr-primary-a10: lch(67.1% 55.5 81.8);
    --clr-primary-a20: lch(71.2% 48.5 82.4);
    --clr-primary-a30: lch(75.3% 41.6 82.7);
    --clr-primary-a40: lch(79.4% 34.5 83);
    --clr-primary-a50: lch(83.4% 27.4 82.8);

    /** Theme surface colors — neutral dark */
    --clr-surface-a0: lch(5.5% 0 0);
    --clr-surface-a10: lch(16.1% 0 0);
    --clr-surface-a20: lch(26.7% 0 0);
    --clr-surface-a30: lch(37% 0 0);
    --clr-surface-a40: lch(47.6% 0 0);
    --clr-surface-a50: lch(57.9% 0 0);

    /** Theme tonal surface colors — warm dark */
    --clr-surface-tonal-a0: lch(11.1% 5.8 80.4);
    --clr-surface-tonal-a10: lch(21.1% 5.3 81.5);
    --clr-surface-tonal-a20: lch(30.9% 4.4 78.5);
    --clr-surface-tonal-a30: lch(40.6% 3.7 74.3);
    --clr-surface-tonal-a40: lch(50.6% 3.3 80.3);
    --clr-surface-tonal-a50: lch(60.4% 2.7 74.8);

    /** Success colors */
    --clr-success-a0: lch(54.7% 41.9 164.2);
    --clr-success-a10: lch(77.1% 50.4 165.9);
    --clr-success-a20: lch(86.5% 30 170.3);

    /** Warning colors */
    --clr-warning-a0: lch(54.5% 49.6 78.1);
    --clr-warning-a10: lch(72.8% 44.7 81.1);
    --clr-warning-a20: lch(86.8% 21 85.6);

    /** Danger colors */
    --clr-danger-a0: lch(34.5% 59 32.9);
    --clr-danger-a10: lch(52% 63.9 29.2);
    --clr-danger-a20: lch(72.6% 31 22.3);

    /** Info colors */
    --clr-info-a0: lch(31.6% 41.5 284);
    --clr-info-a10: lch(50.6% 53.1 282.6);
    --clr-info-a20: lch(72% 29.1 272.8);
}

/* --- Alert Components --- */

.alert {
    padding: .5em 1em;
    margin: .5em 0;
    border-radius: 8px;
    border: 1px solid;
    font-weight: 500;
}

/* Success: Emerald */
.alert-success {
    color: lch(75% 50 145);
    background: lch(65% 60 145 / 0.15);
    border-color: lch(65% 60 145 / 0.5);
}

/* Info: Sky Blue */
.alert-info {
    color: lch(75% 45 230);
    background: lch(60% 55 230 / 0.15);
    border-color: lch(60% 55 230 / 0.5);
}

/* Warning: Vivid Gold */
.alert-warning {
    color: lch(85% 60 85);
    background: lch(75% 75 85 / 0.15);
    border-color: lch(75% 75 85 / 0.5);
}

/* Danger: Electric Crimson */
.alert-danger {
    color: lch(70% 60 25);
    background: lch(55% 70 25 / 0.15);
    border-color: lch(55% 70 25 / 0.5);
}


/** Forms */
label {
    display: block;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--clr-surface-a50);
    margin-bottom: 0.4rem;
}

.form-group {
    margin-bottom: 1.1rem;
}

input[type=text],
input[type=email],
input[type=number],
input[type=search],
input[type=date],
input[type=datetime-local],
input[type=time],
input[type=password],
textarea,
select {
    width: 100%;
    background-color: var(--clr-surface-a20);
    border: 1px solid var(--clr-surface-a30);
    border-bottom: 2px solid var(--clr-surface-a30);
    border-radius: 6px;
    color: var(--clr-light-a0);
    padding: 0.65rem 0.85rem;
    font-size: 0.95rem;
    font-family: inherit;
    box-sizing: border-box;
    transition: border-color 0.2s, box-shadow 0.2s, background-color 0.2s;
    appearance: none;
    -webkit-appearance: none;
}

input[type=text]:focus,
input[type=email]:focus,
input[type=number]:focus,
input[type=search]:focus,
input[type=date]:focus,
input[type=datetime-local]:focus,
input[type=time]:focus,
input[type=password]:focus,
textarea:focus,
select:focus {
    border-color: var(--clr-primary-a0);
    border-bottom-color: var(--clr-primary-a10);
    background-color: var(--clr-surface-tonal-a0);
    outline: none;
    box-shadow: 0 0 0 3px lch(62.9% 62.7 81.5 / 0.18), inset 0 1px 3px lch(0% 0 0 / 0.3);
}

input[type=text]:not(:placeholder-shown),
input[type=email]:not(:placeholder-shown),
input[type=number]:not(:placeholder-shown),
input[type=search]:not(:placeholder-shown),
textarea:not(:placeholder-shown) {
    border-bottom-color: var(--clr-primary-a0);
}

select {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24'%3E%3Cpath fill='%238b8b8b' d='M7 10l5 5 5-5z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 0.75rem center;
    padding-right: 2.2rem;
    cursor: pointer;
}

textarea {
    resize: vertical;
    min-height: 90px;
    line-height: 1.5;
}

input::placeholder,
textarea::placeholder {
    color: var(--clr-surface-a40);
    font-style: italic;
}

input[type=date]::-webkit-calendar-picker-indicator,
input[type=datetime-local]::-webkit-calendar-picker-indicator,
input[type=time]::-webkit-calendar-picker-indicator {
    filter: invert(0.5);
    cursor: pointer;
}

.form-btns {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1em;
}

.modal-footer button,
button[type=submit],
button[type=button],
.form-btns a {
    background-color: var(--clr-primary-a0);
    color: var(--clr-surface-a0);
    border: none;
    border-radius: 4px;
    padding: 0.55rem 1.4rem;
    font-size: 0.95rem;
    font-weight: 700;
    cursor: pointer;
    transition: background-color 0.15s;
    min-width: 100px;
    height: 35px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.form-btns a {
    display: flex;
    justify-content: center;
}

.form-btns .secondary {
    color: white;
    background-color: var(--clr-surface-a40);
}

button[type=submit]:hover {
    background-color: var(--clr-primary-a10);
}

button[type=submit]:active {
    background-color: var(--clr-primary-a20);
}

ul {
    margin: 0;
    list-style: none;
}

a {
    text-decoration: none;
    color: white;  
}

* {
    box-sizing: border-box;
}

html {
    height: 100%;
}

body {
    min-height: 100%;
    margin: 0;
    background-color: var(--clr-surface-a0);
    color: var(--clr-light-a0);
    font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
    display: grid;
    grid-template-rows: auto 1fr;
    grid-template-columns: 1fr;
    grid-template-areas:
        "header"
        "main";
}

aside {
    grid-area: aside;
    width: 70%;
    background-color: var(--clr-surface-a10);
    border-right: 1px solid var(--clr-surface-a20);
    padding: 0;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    /* Mobile: slide in from left */
    position: fixed;
    top: var(--header-h);
    left: -250px;
    height: calc(100dvh - var(--header-h));
    z-index: 100;
    transition: left 0.3s ease;
    overflow-y: auto;
}


aside.open {
    left: 0;
}

.side-nav-greeting {
    padding: 1.1rem 1.25rem 0.9rem;
    border-bottom: 1px solid var(--clr-surface-a20);
}

.side-nav-hello {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--clr-primary-a0);
}

.side-nav {
    flex: 1;
    padding: 0.5rem 0;
}

.side-nav-list {
    list-style: none;
    margin: 0;
    padding: 0;
}

.side-nav-section {
    font-size: 0.65rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--clr-surface-a40);
    padding: 1rem 1.25rem 0.25rem;
}

.side-nav-link {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1.25rem;
    color: var(--clr-surface-a50);
    font-size: 0.95rem;
    font-weight: 500;
    transition: background-color 0.15s, color 0.15s;
    border-left: 3px solid transparent;
}

.side-nav-link:hover {
    background-color: var(--clr-surface-a20);
    color: var(--clr-light-a0);
}

.side-nav-link.active {
    color: var(--clr-primary-a0);
    border-left-color: var(--clr-primary-a0);
    background-color: var(--clr-surface-tonal-a0);
}

.side-nav-footer {
    padding: 1rem 1.25rem;
    border-top: 1px solid var(--clr-surface-a20);
}

.side-nav-logout {
    display: block;
    color: var(--clr-danger-a10);
    font-size: 0.9rem;
    font-weight: 500;
    transition: color 0.15s;
}

.side-nav-logout:hover {
    color: var(--clr-danger-a20);
}

main {
    grid-area: main;
    padding: 1rem;
    overflow-y: auto;
}

h1,
h2,
h3,
h4,
h5,
p {
    margin: 0;
}

.flx {
    display: flex;
    align-items: center;
}

.flx-sb {
    justify-content: space-between;
}

.flx-baseline {
    align-items: end;
}

.gap-1 {
    gap: 1em;
}

header {
    grid-area: header;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.5em;
    height: var(--header-h);
    background-color: var(--clr-surface-a10);
    border-bottom: 1px solid var(--clr-surface-a20);
    position: relative;
    z-index: 100;
}

.page-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 1.25rem;
}

.page-header p {
    margin: 0.15rem 0 0;
    font-size: 0.9rem;
    color: var(--clr-surface-a50);
}

.overlay {
    display: none;
    position: fixed;
    top: var(--header-h);
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 100;
    backdrop-filter: blur(5px);
    -webkit-backdrop-filter: blur(5px);
    background: rgba(0, 0, 0, 0.4);
    transition: opacity 0.3s ease;
}

.overlay.open {
    display: block;
}

#overlay {
    backdrop-filter: blur(5px);
    -webkit-backdrop-filter: blur(5px);
    background: rgba(0, 0, 0, 0.4);
    width: 100%;
    height: 100%;
    position: fixed;
    z-index: -2;
    display: flex;
    align-items: flex-start;
    justify-content: center;    
    top: 0;
}

#modal-container {
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    position: fixed;
    z-index: -3;
    display: flex;
    align-items: flex-start;
    justify-content: center;
    
}

.modal {
    width: 90%;
    max-width: 570px;
    z-index: -4;
    background-color: var(--clr-surface-a0);
    border: 1px solid var(--clr-primary-a0);
    opacity: 0;
    position: relative;
    margin-top: -160px;
    transition: 0.3s;
    padding: 1em;
    border-radius: 10px;
}
.modal-footer{
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: 1em;
   
}

.modal-footer button:first-of-type{
    background-color: var(--clr-surface-a40);
    order: 1;
}

.hamburger {
    display: flex;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5em;
    margin-right: 1em;
}

.hamburger span {
    display: block;
    width: 24px;
    height: 2px;
    background-color: var(--clr-primary-a0);
    border-radius: 2px;
    transition: transform 0.3s ease, opacity 0.3s ease;
}

.hamburger.open span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}

.hamburger.open span:nth-child(2) {
    opacity: 0;
}

.hamburger.open span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}


.container {
    padding: 0.5em;

}


.m-container {
    padding: 1em;
    max-width: 500px;
    border-radius: 6px;
    border: 1px solid var(--clr-warning-a0);
}

.l-container {
    padding: 1em;
    max-width: 768px;
    border-radius: 6px;
    border: 1px solid var(--clr-warning-a0);

}

.xl-container {
    padding: 1em;
    max-width: 1200px;
}

@media (min-width: 768px) {
    .hamburger {
        display: none;
    }

    body {
        grid-template-columns: 250px 1fr;
        grid-template-areas:
            "header header"
            "aside  main";
    }

    aside {
        position: static;
        height: auto;
        transform: none;
        left: auto;
        width: 250px;
    }
}

.btn-danger {
    background: var(--clr-danger-a10);
    color: #fff;
    border: none;
    padding: 0.5rem 1.2rem;
    border-radius: 4px;
    font-weight: 600;
    cursor: pointer;
}

.btn-danger:hover {
    opacity: 0.85;
}
.nav-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 18px;
    height: 18px;
    padding: 2px 5px 0 5px;
    margin-left: auto;
    border-radius: 99px;
    background: var(--clr-danger-a10);
    color: #fff;
    font-size: 0.7rem;
    font-weight: 700;
    line-height: 1;
}