/*
 * File: assets/css/main.css
 * Purpose: Define global design tokens, document defaults, shared utilities, buttons, generic status components, animation, and global responsive behavior.
 */

:root {
    --color-primary: #CC470D;
    --color-primary-hover: #B83B0A;
    --color-primary-dark: #3A2118;
    --color-primary-soft: #FFF0E5;
    --color-accent: #F3A35F;
    --color-accent-soft: #FFF7EF;
    --color-text: #2B1C16;
    --color-text-secondary: #655149;
    --color-text-muted: #806B61;
    --color-border: #EAD8CB;
    --color-border-strong: #D8BFAE;
    --color-input-border: #CFAF9B;
    --color-background: #FFF8F0;
    --color-surface: #FFFDF9;
    --color-surface-muted: #FFF4EA;
    --color-success-text: #215D42;
    --color-success-background: #E4F0E9;
    --color-warning-text: #76500E;
    --color-warning-background: #F7ECD3;
    --color-error-text: #942D35;
    --color-error-background: #F7E5E6;
    --color-information-text: #29526B;
    --color-information-background: #E7F0F5;
    --color-disabled-background: #E7E1DB;
    --color-disabled-text: #756D67;

    --font-heading: "Poppins", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    --font-body: "Poppins", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;

    --space-1: 0.25rem;
    --space-2: 0.5rem;
    --space-3: 0.75rem;
    --space-4: 1rem;
    --space-5: 1.25rem;
    --space-6: 1.5rem;
    --space-8: 2rem;
    --space-10: 2.5rem;
    --space-12: 3rem;
    --space-16: 4rem;
    --space-20: 5rem;
    --space-24: 6rem;

    --radius-small: 0.5rem;
    --radius-medium: 0.75rem;
    --radius-large: 1.125rem;
    --radius-xlarge: 1.5rem;
    --radius-pill: 999px;

    --shadow-card: 0 8px 24px rgba(91, 48, 28, 0.08);
    --shadow-card-hover: 0 16px 36px rgba(91, 48, 28, 0.13);
    --shadow-dialog: 0 26px 68px rgba(58, 33, 24, 0.24);

    --container-width: 76rem;
    --content-width: 44rem;
    --page-gutter: 1.25rem;
    --header-height: 4.75rem;
    --dialog-width: 46rem;

    --focus-ring-color: #A33A12;
    --focus-ring-width: 0.1875rem;
    --focus-ring-offset: 0.1875rem;

    --transition-fast: 140ms ease;
    --transition-standard: 220ms ease;

    --layer-header: 20;
}

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

html {
    color-scheme: light;
    scroll-padding-top: calc(var(--header-height) + var(--space-4));
}

body {
    min-width: 20rem;
    margin: 0;
    background: var(--color-background);
    color: var(--color-text);
    font-family: var(--font-body);
    font-size: 1rem;
    line-height: 1.65;
    text-rendering: optimizeLegibility;
    -webkit-font-smoothing: antialiased;
}

body:has(dialog[open]) {
    overflow: hidden;
}

img,
svg {
    display: block;
    max-width: 100%;
}

img {
    height: auto;
}

button,
input,
textarea,
select {
    font: inherit;
}

input,
textarea,
select {
    color: var(--color-text);
}

input::placeholder,
textarea::placeholder {
    color: var(--color-text-muted);
    opacity: 1;
}

button,
a {
    -webkit-tap-highlight-color: transparent;
}

button {
    cursor: pointer;
}

button:disabled {
    cursor: not-allowed;
}

h1,
h2,
h3,
p,
ul,
ol {
    margin-top: 0;
}

h1,
h2,
h3 {
    color: var(--color-text);
    font-family: var(--font-heading);
    font-weight: 600;
    letter-spacing: -0.025em;
}

h1 {
    font-size: clamp(2.35rem, 7vw, 4rem);
    line-height: 1.06;
}

h2 {
    font-size: clamp(1.75rem, 4.5vw, 2.5rem);
    line-height: 1.14;
}

h3 {
    font-size: clamp(1.2rem, 2.4vw, 1.45rem);
    line-height: 1.3;
}

p {
    color: var(--color-text-secondary);
}

a {
    color: var(--color-primary);
    text-decoration-thickness: 0.08em;
    text-underline-offset: 0.2em;
}

a:hover {
    color: var(--color-primary-hover);
}

:focus-visible {
    outline: var(--focus-ring-width) solid var(--focus-ring-color);
    outline-offset: var(--focus-ring-offset);
}

[hidden] {
    display: none !important;
}

.container {
    width: min(100% - (var(--page-gutter) * 2), var(--container-width));
    margin-inline: auto;
}

.visually-hidden {
    position: absolute !important;
    width: 1px !important;
    height: 1px !important;
    padding: 0 !important;
    margin: -1px !important;
    overflow: hidden !important;
    clip: rect(0, 0, 0, 0) !important;
    white-space: nowrap !important;
    border: 0 !important;
}

.skip-link {
    position: fixed;
    top: var(--space-3);
    left: var(--space-3);
    z-index: calc(var(--layer-header) + 10);
    padding: 0.7rem 1rem;
    border: 1px solid var(--color-border-strong);
    border-radius: var(--radius-medium);
    background: var(--color-surface);
    color: var(--color-primary-dark);
    box-shadow: var(--shadow-card);
    font-weight: 700;
    text-decoration: none;
    transform: translateY(-200%);
    transition: transform var(--transition-fast);
}

.skip-link:focus {
    transform: translateY(0);
}

.section {
    padding-block: var(--space-16);
    scroll-margin-top: calc(var(--header-height) + var(--space-4));
}

.button {
    display: inline-flex;
    min-height: 3rem;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: 0.78rem 1.3rem;
    border: 1px solid transparent;
    border-radius: var(--radius-medium);
    font-weight: 700;
    line-height: 1.2;
    text-align: center;
    text-decoration: none;
    transition:
        background-color var(--transition-fast),
        border-color var(--transition-fast),
        color var(--transition-fast),
        box-shadow var(--transition-fast),
        transform var(--transition-fast);
}

.button:hover {
    text-decoration: none;
}

.button:active:not(:disabled) {
    transform: translateY(0.0625rem);
}

.button--primary {
    border-color: var(--color-primary);
    background: var(--color-primary);
    color: #FFFFFF;
    box-shadow: 0 6px 16px rgba(226, 90, 25, 0.22);
}

.button--primary:hover {
    border-color: var(--color-primary-hover);
    background: var(--color-primary-hover);
    color: #FFFFFF;
    box-shadow: 0 8px 20px rgba(201, 71, 15, 0.26);
}

.button--secondary {
    border-color: var(--color-primary);
    background: var(--color-surface);
    color: var(--color-primary-hover);
}

.button--secondary:hover {
    border-color: var(--color-primary);
    background: var(--color-primary-soft);
    color: var(--color-primary-hover);
}

.button--text {
    min-height: 2.75rem;
    padding-inline: var(--space-3);
    color: var(--color-primary-hover);
}

.button--text:hover {
    background: var(--color-primary-soft);
    color: var(--color-primary-dark);
}

.button--disabled,
.button:disabled {
    border-color: var(--color-disabled-background);
    background: var(--color-disabled-background);
    color: var(--color-disabled-text);
    box-shadow: none;
    transform: none;
}

.button--full-width {
    width: 100%;
}

.button-icon {
    display: grid;
    width: 2.75rem;
    height: 2.75rem;
    place-items: center;
    padding: 0;
    border: 1px solid transparent;
    border-radius: 50%;
    background: transparent;
    color: var(--color-text-secondary);
    transition:
        background-color var(--transition-fast),
        border-color var(--transition-fast),
        color var(--transition-fast);
}

.button-icon:hover {
    border-color: var(--color-primary);
    background: var(--color-primary-soft);
    color: var(--color-primary-hover);
}

.state-panel,
.status-message {
    display: flex;
    align-items: flex-start;
    gap: var(--space-4);
    padding: var(--space-5);
    border: 1px solid transparent;
    border-radius: var(--radius-large);
}

.state-panel__icon,
.status-message__icon {
    display: grid;
    width: 2rem;
    height: 2rem;
    flex: 0 0 auto;
    place-items: center;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.72);
    font-weight: 800;
}

.state-panel--error,
.status-message--error {
    border-color: #E6C5C8;
    background: var(--color-error-background);
    color: var(--color-error-text);
}

.state-panel--empty,
.status-message--information {
    border-color: #C9DCE7;
    background: var(--color-information-background);
    color: var(--color-information-text);
}

.status-message--success {
    border-color: #C3DCCF;
    background: var(--color-success-background);
    color: var(--color-success-text);
}

.status-message--warning {
    border-color: #E5D3A8;
    background: var(--color-warning-background);
    color: var(--color-warning-text);
}

.state-panel__title,
.status-message__title {
    margin-bottom: var(--space-1);
    color: inherit;
    font-family: var(--font-body);
    font-size: 1rem;
    font-weight: 800;
    letter-spacing: 0;
}

.state-panel__text,
.status-message__text {
    margin: 0;
    color: inherit;
}

@keyframes dialog-enter {
    from {
        opacity: 0;
        transform: translateY(0.625rem) scale(0.988);
    }

    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

@media (min-width: 48rem) {
    :root {
        --page-gutter: 2rem;
    }

    .section {
        padding-block: var(--space-20);
    }
}

@media (min-width: 64rem) {
    :root {
        --page-gutter: 2.5rem;
    }

    .section {
        padding-block: var(--space-24);
    }
}

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

    .mentor-card:hover,
    .button:active:not(:disabled) {
        transform: none;
    }
}