/**
 * NSF Design System Variables
 * 
 * Core design tokens for the Not So Fast project
 * Contains colors, spacing, typography, and other design constants
 * 
 * @author Loïc Misenta
 * @version 2.0
 * @since 2025-01-09
 */

/* ==========================================================================
   Font Preload & Optimization
   ========================================================================== */

/* Preconnect to Google Fonts for better performance */
@import url('https://fonts.googleapis.com/css2?family=Unbounded:wght@200;300;400;500;600;700;800;900&display=swap');

/* ==========================================================================
   Custom Fonts
   ========================================================================== */

@font-face {
    font-family: 'Bauhaus';
    src: url('../../fonts/bauhaus93/BAUHS93.ttf') format('truetype');
    font-display: swap;
    font-weight: normal;
    font-style: normal;
}

/* ==========================================================================
   Design System Variables
   ========================================================================== */

:root {
    /* Brand Colors */
    --nsf-primary: #A4C8E1;
    --nsf-secondary: #87CEEB;
    --nsf-accent: #2E282A;
    --nsf-primary-dark: #7DA4B8;
    --nsf-secondary-dark: #5A8BA0;

    /* Semantic Colors */
    --nsf-error: #dc3545;
    --nsf-success: #28a745;
    --nsf-warning: #ffc107;
    --nsf-info: #17a2b8;
    --fail-text: #1e1e1e44;
    
    /* Neutral Colors */
    --nsf-light: #f8f9fa;
    --nsf-dark: #2E282A;
    --nsf-border: #e9ecef;
    --nsf-muted: #6c757d;
    --white: #ffffff;
    
    /* Shadows */
    --nsf-shadow: rgba(0, 0, 0, 0.1);
    --nsf-shadow-hover: rgba(164, 200, 225, 0.2);
    --nsf-shadow-strong: rgba(0, 0, 0, 0.2);
    
    /* Border Radius */
    --nsf-border-radius: 8px;
    --nsf-border-radius-sm: 4px;
    --nsf-border-radius-lg: 12px;
    --nsf-border-radius-xl: 16px;
    
    /* Transitions */
    --nsf-transition: all 0.3s ease;
    --nsf-transition-fast: all 0.2s ease;
    --nsf-transition-slow: all 0.5s ease;
    
    /* Z-Index Scale */
    --nsf-z-base: 1;
    --nsf-z-dropdown: 100;
    --nsf-z-sticky: 500;
    --nsf-z-fixed: 600;
    --nsf-z-overlay: 999;
    --nsf-z-popup: 1000;
    --nsf-z-notification: 10000;
    
    /* Spacing Scale */
    --nsf-space-xs: 0.25rem;
    --nsf-space-sm: 0.5rem;
    --nsf-space-md: 1rem;
    --nsf-space-lg: 1.5rem;
    --nsf-space-xl: 2rem;
    --nsf-space-2xl: 3rem;
    --nsf-space-3xl: 4rem;
    
    /* Typography */
    --nsf-font-family-base: 'Unbounded';
    --nsf-font-family-heading: 'Unbounded';
    --nsf-font-family-logo: 'Bauhaus', 'Unbounded';
    --nsf-font-family-accent: 'Unbounded';
    --nsf-font-size-xs: 0.75rem;
    --nsf-font-size-sm: 0.875rem;
    --nsf-font-size-base: 1rem;
    --nsf-font-size-lg: 1.125rem;
    --nsf-font-size-xl: 1.25rem;
    --nsf-font-size-2xl: 1.5rem;
    --nsf-font-size-3xl: 1.875rem;
    --nsf-font-size-4xl: 2.25rem;
    --nsf-font-size-5xl: 3rem;
    --nsf-font-size-6xl: 4rem;
    --nsf-font-size-7xl: 6rem;
    --nsf-font-size-8xl: 8rem;
    --nsf-font-size-9xl: 14rem;

    
    /* Line Heights */
    --nsf-line-height-tight: 1.25;
    --nsf-line-height-base: 1.5;
    --nsf-line-height-relaxed: 1.75;
    
    /* Font Weights */
    --nsf-font-weight-light: 300;
    --nsf-font-weight-normal: 400;
    --nsf-font-weight-medium: 500;
    --nsf-font-weight-semibold: 600;
    --nsf-font-weight-bold: 700;
    --nsf-font-weight-extrabold: 800;
    --nsf-font-weight-black: 900;
    
    /* Breakpoints (for use in media queries) */
    --nsf-breakpoint-sm: 576px;
    --nsf-breakpoint-md: 768px;
    --nsf-breakpoint-lg: 992px;
    --nsf-breakpoint-xl: 1200px;
    --nsf-breakpoint-2xl: 1400px;
}

/* ==========================================================================
   Theme Utilities
   ========================================================================== */

.nsf-theme {
    --primary-color: var(--nsf-primary);
    --secondary-color: var(--nsf-secondary);
    --accent-color: var(--nsf-accent);
}

.color-primary {
    color: var(--nsf-primary);
}

.color-secondary {
    color: var(--nsf-secondary);
}

.color-accent {
    color: var(--nsf-accent);
}

.font-accent {
    font-family: var(--nsf-font-family-accent);
}

.font-heading {
    font-family: var(--nsf-font-family-heading);
}

.font-base {
    font-family: var(--nsf-font-family-base);
}

/* .background-primary {
    background-color: var(--nsf-primary) !important;
}

.background-secondary {
    background-color: var(--nsf-secondary) !important;
}

.background-accent {
    background-color: var(--nsf-accent) ;
} */

/* ==========================================================================
   Global Styles
   ========================================================================== */

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

/* iOS viewport height fix */
html {
    height: 100%;
    height: -webkit-fill-available;
}

body {
    font-family: var(--nsf-font-family-base);
    font-size: var(--nsf-font-size-base);
    line-height: var(--nsf-line-height-base);
    color: var(--nsf-dark);
    background-color: var(--white);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    min-height: 100vh;
    min-height: -webkit-fill-available;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--nsf-font-family-heading);
    font-weight: var(--nsf-font-weight-bold);
    line-height: var(--nsf-line-height-tight);
    color: var(--nsf-primary);
    margin-bottom: var(--nsf-space-md);
}

h1 {
    font-size: var(--nsf-font-size-4xl);
    font-weight: var(--nsf-font-weight-black);
    padding: var(--nsf-space-sm) var(--nsf-space-md)
}

h2 {
    font-size: var(--nsf-font-size-3xl);
}

h3 {
    font-size: var(--nsf-font-size-2xl);
}

h4 {
    font-size: var(--nsf-font-size-xl);
}

h5 {
    font-size: var(--nsf-font-size-lg);
}

h6 {
    font-size: var(--nsf-font-size-base);
}

p {
    margin-bottom: var(--nsf-space-md);
}

a {
    color: var(--nsf-primary);
    text-decoration: none;
    transition: var(--nsf-transition-fast);
}

a:hover {
    color: var(--nsf-secondary);
    text-decoration: none;
}

button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    outline: none;
    transition: var(--nsf-transition);
}

input, textarea, select {
    font-family: inherit;
    font-size: var(--nsf-font-size-base);
    outline: none;
}

img {
    max-width: 100%;
    height: auto;
    dynamic-range-limit: standard;
}

ul, ol {
    padding-left: var(--nsf-space-lg);
    margin-bottom: var(--nsf-space-md);
}

li {
    margin-bottom: var(--nsf-space-xs);
}

code {
    font-family: 'Courier New', monospace;
    background-color: var(--nsf-border);
    padding: var(--nsf-space-xs);
    border-radius: var(--nsf-border-radius-sm);
}

pre {
    background-color: var(--nsf-border);
    padding: var(--nsf-space-md);
    border-radius: var(--nsf-border-radius);
    overflow-x: auto;
    margin-bottom: var(--nsf-space-md);
}

blockquote {
    border-left: 4px solid var(--nsf-primary);
    padding-left: var(--nsf-space-md);
    margin: var(--nsf-space-md) 0;
    font-style: italic;
    color: var(--nsf-muted);
}

hr {
    border: none;
    height: 1px;
    background-color: var(--nsf-border);
    margin: var(--nsf-space-xl) 0;
}

/* ==========================================================================
   Button Theming (align Bootstrap to NSF brand colors)
   ========================================================================== */
.btn-primary {
    background-color: var(--nsf-primary) !important;
    border-color: var(--nsf-primary) !important;
    color: var(--white) !important;
}
.btn-primary:hover,
.btn-primary:focus {
    background-color: var(--nsf-primary-dark) !important;
    border-color: var(--nsf-primary-dark) !important;
    color: var(--white) !important;
}

.btn-outline-primary {
    color: var(--nsf-primary) !important;
    border-color: var(--nsf-primary) !important;
    background-color: transparent !important;
}
.btn-outline-primary:hover,
.btn-outline-primary:focus {
    color: var(--white) !important;
    background-color: var(--nsf-primary) !important;
    border-color: var(--nsf-primary) !important;
}

.swal2-container {
    position: fixed !important;
    inset: 0 !important;
    z-index: 2147483000 !important;
    box-sizing: border-box !important;
    overflow-x: hidden !important;
    overflow-y: auto !important;
    padding: 1rem !important;
    backdrop-filter: blur(8px);
    pointer-events: none !important;
}

.swal2-container.swal2-backdrop-show,
.swal2-container.swal2-noanimation {
    pointer-events: auto !important;
}

.swal2-container.swal2-center {
    display: grid !important;
    place-items: center !important;
}

.swal2-container.swal2-center .swal2-popup {
    margin: auto !important;
}

.swal2-container.swal2-top-end {
    display: flex !important;
    align-items: flex-start !important;
    justify-content: flex-end !important;
}

.swal2-container.swal2-bottom,
.swal2-container.swal2-bottom-end {
    display: flex !important;
    align-items: flex-end !important;
    justify-content: center !important;
}

.swal2-container.swal2-bottom-end {
    justify-content: flex-end !important;
}

.swal2-popup {
    position: relative !important;
    box-sizing: border-box !important;
    pointer-events: auto !important;
    width: min(560px, calc(100vw - 2rem)) !important;
    padding: 2rem 2rem 1.5rem !important;
    border: 1px solid rgba(164, 200, 225, 0.32) !important;
    border-radius: 28px !important;
    background:
        radial-gradient(circle at top left, rgba(164, 200, 225, 0.16), transparent 38%),
        linear-gradient(180deg, rgba(255,255,255,0.98), rgba(248,249,250,0.98)) !important;
    box-shadow:
        0 30px 70px rgba(46, 40, 42, 0.18),
        0 10px 24px rgba(164, 200, 225, 0.14) !important;
    overflow: hidden !important;
}

.swal2-title {
    margin: 0 !important;
    padding: 0 !important;
    color: var(--nsf-accent) !important;
    font-family: var(--nsf-font-family-heading) !important;
    font-size: clamp(1.9rem, 4vw, 2.7rem) !important;
    font-weight: 800 !important;
    letter-spacing: -0.04em !important;
}

.swal2-html-container {
    margin: 0.9rem 0 1.4rem !important;
    padding: 0 !important;
    color: rgba(46, 40, 42, 0.72) !important;
    font-family: var(--nsf-font-family-base) !important;
    font-size: 0.98rem !important;
    line-height: 1.7 !important;
}

.swal2-icon {
    margin: 0 auto 1.25rem !important;
    border-width: 0 !important;
}

.swal2-icon.swal2-success,
.swal2-icon.swal2-error,
.swal2-icon.swal2-warning,
.swal2-icon.swal2-info,
.swal2-icon.swal2-question {
    width: 88px !important;
    height: 88px !important;
    border-radius: 999px !important;
    background: linear-gradient(135deg, rgba(164, 200, 225, 0.9), rgba(255, 255, 255, 0.95)) !important;
    box-shadow:
        inset 0 0 0 1px rgba(255,255,255,0.85),
        0 12px 30px rgba(164, 200, 225, 0.28) !important;
}

.swal2-icon.swal2-success {
    background: #fff !important;
    box-shadow: 0 12px 30px rgba(164, 200, 225, 0.18) !important;
}

.swal2-icon.swal2-success [class^='swal2-success-line'],
.swal2-icon.swal2-success .swal2-success-ring {
    background: transparent !important;
}

.swal2-icon.swal2-success .swal2-success-ring {
    border: 0.25em solid rgba(175, 220, 134, 0.45) !important;
}

.swal2-icon.swal2-success .swal2-success-fix,
.swal2-icon.swal2-success [class^='swal2-success-circular-line'] {
    display: none !important;
}

.swal2-icon.swal2-success .swal2-success-line-tip,
.swal2-icon.swal2-success .swal2-success-line-long {
    background-color: var(--nsf-accent) !important;
}

.swal2-icon.swal2-error [class^='swal2-x-mark-line'] {
    background-color: var(--nsf-accent) !important;
}

.swal2-icon.swal2-warning {
    color: var(--nsf-accent) !important;
}

.swal2-icon.swal2-info,
.swal2-icon.swal2-question {
    color: var(--nsf-accent) !important;
    border-color: transparent !important;
}

.swal2-actions {
    width: 100% !important;
    margin: 0 !important;
    gap: 0.75rem !important;
    justify-content: center !important;
}

.swal2-confirm,
.swal2-cancel,
.swal2-deny {
    min-width: 170px !important;
    padding: 0.9rem 1.25rem !important;
    border-radius: 999px !important;
    font-family: var(--nsf-font-family-heading) !important;
    font-size: 0.9rem !important;
    font-weight: 700 !important;
    letter-spacing: 0.02em !important;
    transition: transform 0.2s ease, box-shadow 0.2s ease, background-color 0.2s ease !important;
    box-shadow: none !important;
}

.swal2-confirm {
    color: var(--nsf-accent) !important;
    background: var(--nsf-primary) !important;
    box-shadow: 0 12px 24px rgba(164, 200, 225, 0.34) !important;
}

.swal2-cancel,
.swal2-deny {
    color: var(--nsf-accent) !important;
    background: rgba(255, 255, 255, 0.92) !important;
    border: 1px solid rgba(46, 40, 42, 0.1) !important;
}

.swal2-confirm:hover,
.swal2-cancel:hover,
.swal2-deny:hover {
    transform: translateY(-1px) !important;
}

.swal2-confirm:hover {
    color: #fff !important;
    background: var(--nsf-primary-dark) !important;
}

.swal2-cancel:hover,
.swal2-deny:hover {
    background: rgba(164, 200, 225, 0.14) !important;
}

.swal2-show {
    animation: nsfSwalIn 0.24s ease-out !important;
}

.swal2-hide {
    animation: nsfSwalOut 0.18s ease-in forwards !important;
}

@keyframes nsfSwalIn {
    from {
        opacity: 0;
        transform: translateY(14px) scale(0.98);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

@keyframes nsfSwalOut {
    from {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
    to {
        opacity: 0;
        transform: translateY(8px) scale(0.985);
    }
}

.nsf-shared-alert__container.swal2-backdrop-show {
    backdrop-filter: blur(8px);
}

.nsf-shared-alert {
    width: min(560px, calc(100vw - 2rem));
    padding: 2rem 2rem 1.5rem;
    border: 1px solid rgba(164, 200, 225, 0.32);
    border-radius: 28px;
    background:
        radial-gradient(circle at top left, rgba(164, 200, 225, 0.16), transparent 38%),
        linear-gradient(180deg, rgba(255,255,255,0.98), rgba(248,249,250,0.98));
    box-shadow:
        0 30px 70px rgba(46, 40, 42, 0.18),
        0 10px 24px rgba(164, 200, 225, 0.14);
    overflow: visible;
}

.nsf-shared-alert__icon {
    width: 88px;
    height: 88px;
    margin: 0 auto 1.25rem;
    border: none;
}

.nsf-shared-alert__check {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 88px;
    height: 88px;
    border-radius: 999px;
    color: var(--nsf-accent);
    background: linear-gradient(135deg, rgba(164, 200, 225, 0.9), rgba(255, 255, 255, 0.95));
    box-shadow:
        inset 0 0 0 1px rgba(255,255,255,0.85),
        0 12px 30px rgba(164, 200, 225, 0.28);
    font-size: 2.1rem;
}

.nsf-shared-alert__mark--error {
    color: #5f6670;
    background: linear-gradient(135deg, #eef2f5, #ffffff);
    box-shadow:
        inset 0 0 0 1px rgba(255,255,255,0.9),
        0 12px 30px rgba(95, 102, 112, 0.16);
}

.nsf-shared-alert__title {
    margin: 0;
    padding: 0;
    color: var(--nsf-accent);
    font-size: clamp(1.55rem, 3vw, 2.2rem);
    font-weight: 800;
    letter-spacing: 0;
    line-height: 1.12;
    overflow-wrap: anywhere;
}

.nsf-shared-alert__content {
    margin: 0.9rem 0 1.4rem;
    padding: 0;
}

.nsf-shared-alert__body p {
    margin: 0;
    color: rgba(46, 40, 42, 0.72);
    font-size: 0.98rem;
    line-height: 1.7;
}

.nsf-shared-alert .swal2-actions {
    width: 100%;
    margin: 0;
    gap: 0.75rem;
    justify-content: center;
}

.nsf-shared-alert__confirm,
.nsf-shared-alert__cancel {
    min-width: 170px;
    padding: 0.9rem 1.25rem;
    border-radius: 999px;
    font-family: var(--nsf-font-family-heading);
    font-size: 0.9rem;
    font-weight: 700;
    letter-spacing: 0.02em;
    transition: transform 0.2s ease, box-shadow 0.2s ease, background-color 0.2s ease;
}

.nsf-shared-alert__confirm {
    color: var(--nsf-accent);
    background: var(--nsf-primary);
    box-shadow: 0 12px 24px rgba(164, 200, 225, 0.34);
}

.nsf-shared-alert__cancel {
    color: var(--nsf-accent);
    background: rgba(255, 255, 255, 0.92);
    border: 1px solid rgba(46, 40, 42, 0.1);
}

.nsf-shared-alert__confirm:hover,
.nsf-shared-alert__cancel:hover {
    transform: translateY(-1px);
}

.nsf-shared-alert__confirm:hover {
    background: var(--nsf-primary-dark);
    color: #fff;
}

.nsf-shared-alert__cancel:hover {
    background: rgba(164, 200, 225, 0.14);
}

.nsf-shared-alert-show {
    animation: nsfSharedAlertIn 0.24s ease-out;
}

.nsf-shared-alert-hide {
    animation: nsfSharedAlertOut 0.18s ease-in forwards;
}

@keyframes nsfSharedAlertIn {
    from {
        opacity: 0;
        transform: translateY(14px) scale(0.98);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

@keyframes nsfSharedAlertOut {
    from {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
    to {
        opacity: 0;
        transform: translateY(8px) scale(0.985);
    }
}

@media (max-width: 640px) {
    .nsf-shared-alert {
        padding: 1.5rem 1rem 1rem;
        border-radius: 22px;
    }

    .nsf-shared-alert .swal2-actions {
        flex-direction: column-reverse;
    }

    .nsf-shared-alert__confirm,
    .nsf-shared-alert__cancel {
        width: 100%;
        min-width: 0;
    }
}

.container {
    max-width: var(--nsf-breakpoint-xl);
    margin: 0 auto;
    padding: 0 var(--nsf-space-md);
}

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

.text-center {
    text-align: center;
}

.text-left {
    text-align: left;
}

.text-right {
    text-align: right;
}

.d-none {
    display: none;
}

.d-block {
    display: block;
}

.d-inline {
    display: inline;
}

.d-inline-block {
    display: inline-block;
}

.d-flex {
    display: flex;
}

.flex-column {
    flex-direction: column;
}

.justify-center {
    justify-content: center;
}

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

.align-center {
    align-items: center;
}

.w-100 {
    width: 100%;
}

.h-100 {
    height: 100%;
}

.mb-0 {
    margin-bottom: 0;
}

.mt-auto {
    margin-top: auto;
}

.mb-auto {
    margin-bottom: auto;
}

.margin-top-0 {
    margin-top: 0;
}

.margin-top-1 {
    margin-top: var(--nsf-space-xs);
}

.margin-top-2 {
    margin-top: var(--nsf-space-sm);
}

.margin-top-3 {
    margin-top: var(--nsf-space-md);
}

.margin-top-4 {
    margin-top: var(--nsf-space-lg);
}

.margin-top-5 {
    margin-top: var(--nsf-space-xl);
}

.margin-top-6 {
    margin-top: var(--nsf-space-2xl);
}

.margin-top-7 {
    margin-top: var(--nsf-space-3xl);
}

.padding-top-0 {
    padding-top: 0;
}

.padding-top-1 {
    padding-top: var(--nsf-space-xs);
}

.padding-top-2 {
    padding-top: var(--nsf-space-sm);
}

.padding-top-3 {
    padding-top: var(--nsf-space-md);
}

.padding-top-4 {
    padding-top: var(--nsf-space-lg);
}

.padding-top-5 {
    padding-top: var(--nsf-space-xl);
}

.padding-top-6 {
    padding-top: var(--nsf-space-2xl);
}



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

@media (max-width: 768px) {
    .container {
        padding: 0 var(--nsf-space-sm);
    }

    .swal2-popup {
        padding: 1.5rem 1rem 1rem !important;
        border-radius: 22px !important;
    }

    .swal2-actions {
        flex-direction: column-reverse !important;
    }

    .swal2-confirm,
    .swal2-cancel,
    .swal2-deny {
        width: 100% !important;
        min-width: 0 !important;
    }
    
    h1 {
        font-size: var(--nsf-font-size-3xl);
    }
    
    h2 {
        font-size: var(--nsf-font-size-2xl);
    }
    
    h3 {
        font-size: var(--nsf-font-size-xl);
    }
}