/*
 * Link — Design System v6.0 "Soleil"
 * Warm · Young · Human · Educational
 * Font: Inter · Brand: warm orange/coral · Bg: warm white
 */

/* ============================
   DESIGN TOKENS
   ============================ */
:root {
    /* Brand — violet (couleur d'identité principale) */
    --brand:       #7C5CFF;
    --brand-dk:    #5B3FE0;
    --brand-lt:    #EEE9FF;
    --brand-mid:   #C9BCFF;
    /* Dégradé conservé en orange = accent d'action (boutons .btn-primary) */
    --brand-grad:  linear-gradient(135deg, #FF7A3D 0%, #FF5A5F 100%);

    /* Orange d'action (accent ponctuel) */
    --accent-orange:    #FF6B35;
    --accent-orange-dk: #E8501C;

    /* Coral / rose (secondary accent) */
    --coral:       #FF4D6D;
    --coral-lt:    #FFE4EA;

    /* Gold / sun (tertiary accent) */
    --gold:        #F9A826;
    --gold-lt:     #FFF3DA;

    /* Playful extended palette (hero navy, violet pop, sunny yellow) */
    --navy:        #191634;
    --navy-2:      #221F45;
    --violet:      #7C5CFF;
    --violet-lt:   #EEE9FF;
    --yellow:      #FFE14D;
    --lime:        #DFF56B;
    --mint:        #6BE3C0;

    /* Legacy accent aliases -> warm ink (kept so old views stay consistent) */
    --accent:      #2A1712;
    --accent-lt:   #FFF1EA;
    --accent-md:   #E7C4B4;

    /* Legacy purple/pink/sky aliases remapped onto the violet palette
       so every existing view recolours automatically. */
    --purple:      #7C5CFF;
    --purple-lt:   #EEE9FF;
    --pink:        #FF4D6D;
    --pink-lt:     #FFE4EA;

    /* Status colors */
    --amber:       #D97706;
    --amber-lt:    #FEF3C7;
    --sky:         #2BB3C0;   /* warm teal — used as the "school / info" accent */
    --sky-lt:      #E1F6F8;
    --green:       #12A150;
    --green-lt:    #DBF6E5;
    --red:         #E5484D;
    --red-lt:      #FDE7E7;

    /* Neutrals — warm, très clair */
    --bg:          #FFFDFB;
    --bg-subtle:   #FBF7F2;
    --surface:     #FFFFFF;
    --border:      #F1EAE3;
    --border-lt:   #F8F3EE;
    --text:        #2A1712;
    --text-2:      #6B5A50;
    --text-3:      #A99C93;

    /* Radius — friendlier, rounder */
    --r-xs:  0.5rem;
    --r-sm:  0.75rem;
    --r-md:  1rem;
    --r-lg:  1.25rem;
    --r-xl:  1.5rem;
    --r-2xl: 2rem;

    /* Shadows — warm-tinted */
    --shadow-xs: 0 1px 2px rgba(80,40,20,0.06);
    --shadow-sm: 0 2px 6px rgba(80,40,20,0.07), 0 1px 2px rgba(80,40,20,0.04);
    --shadow-md: 0 8px 22px rgba(255,107,53,0.12), 0 2px 6px rgba(80,40,20,0.06);
    --shadow-lg: 0 16px 40px rgba(255,90,60,0.16), 0 4px 10px rgba(80,40,20,0.06);
    --shadow-brand: 0 10px 24px rgba(255,90,60,0.28);
}

/* ============================
   RESET & BASE
   ============================ */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html {
    scroll-behavior: smooth;
    -webkit-tap-highlight-color: transparent;
    text-size-adjust: 100%;
    font-size: 16px;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    padding-bottom: max(env(safe-area-inset-bottom), 0px);
}

input, select, textarea, button { font-family: inherit; font-size: 16px; }
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }

/* ============================
   TYPOGRAPHY
   ============================ */
h1, h2, h3, h4 {
    line-height: 1.2;
    letter-spacing: -0.02em;
    color: var(--text);
    font-weight: 800;
}

.text-hero  { font-size: clamp(2.3rem, 7.5vw, 4rem); font-weight: 900; letter-spacing: -0.035em; line-height: 1.05; }
.text-title { font-size: clamp(1.5rem, 3.6vw, 2rem); font-weight: 800; letter-spacing: -0.025em; }
.text-label { font-size: 11px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.1em; color: var(--brand); }
.text-muted { color: var(--text-2); }

/* Real warm gradient text (fun) */
.gradient-text,
.madeline-gradient-text {
    background: var(--brand-grad);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    color: var(--brand);
}
.madeline-accent-text { color: var(--brand); font-weight: 800; }

/* ============================
   SURFACE / CARD
   ============================ */
.surface {
    background: var(--surface);
    border-radius: var(--r-lg);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border);
}

.card-hover {
    transition: transform 0.2s cubic-bezier(0.22,1,0.36,1), box-shadow 0.2s ease, border-color 0.2s ease;
}
@media (hover: hover) {
    .card-hover:hover {
        transform: translateY(-3px);
        box-shadow: var(--shadow-md);
        border-color: var(--brand-mid);
    }
}
.card-hover:active { transform: scale(0.98); }

/* Legacy */
.madeline-glass {
    background: rgba(255,255,255,0.9);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--border);
    border-radius: var(--r-lg);
}
.antigravity-hover { transition: transform 0.2s ease, box-shadow 0.2s ease; }
@media (hover: hover) { .antigravity-hover:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); } }
.antigravity-hover:active { transform: scale(0.97); }

/* ============================
   CHIPS / BADGES
   ============================ */
.chip {
    display: inline-flex;
    align-items: center;
    gap: 0.3rem;
    padding: 0.25rem 0.7rem;
    border-radius: 9999px;
    font-size: 11px;
    font-weight: 700;
    line-height: 1;
    white-space: nowrap;
}
.chip-purple { background: var(--brand-lt); color: var(--brand-dk); }
.chip-sky    { background: var(--sky-lt);   color: var(--sky); }
.chip-lime, .chip-green { background: var(--green-lt); color: var(--green); }
.chip-amber  { background: var(--amber-lt);  color: var(--amber); }
.chip-pink   { background: var(--coral-lt);  color: var(--coral); }
.chip-red    { background: var(--red-lt);    color: var(--red); }
.chip-dark   { background: var(--text);      color: white; }

/* ============================
   BUTTONS
   ============================ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.45rem;
    font-weight: 700;
    font-size: 0.875rem;
    border-radius: 9999px;
    border: none;
    cursor: pointer;
    transition: transform 0.14s cubic-bezier(0.22,1,0.36,1), box-shadow 0.18s, opacity 0.12s, background 0.15s;
    min-height: 44px;
    padding: 0 1.4rem;
    white-space: nowrap;
    -webkit-tap-highlight-color: transparent;
}
.btn:active { transform: scale(0.96); opacity: 0.95; }

.btn-primary {
    background: var(--brand-grad);
    color: white;
    box-shadow: var(--shadow-brand);
}
.btn-primary:hover { transform: translateY(-1px); box-shadow: 0 14px 30px rgba(255,90,60,0.36); }

.btn-secondary {
    background: var(--surface);
    color: var(--text);
    border: 1.5px solid var(--border);
    box-shadow: var(--shadow-xs);
}
.btn-secondary:hover { background: var(--brand-lt); border-color: var(--brand-mid); color: var(--brand-dk); }

.btn-dark {
    background: var(--text);
    color: white;
}
.btn-dark:hover { background: #3d271d; }

.btn-sm { min-height: 36px; padding: 0 1rem; font-size: 0.8125rem; }
.btn-lg { min-height: 52px; padding: 0 1.9rem; font-size: 1rem; }

/* Legacy btn-primary / btn-secondary without .btn class */
.btn-primary:not(.btn),
.btn-secondary:not(.btn) {
    display: inline-flex; align-items: center; justify-content: center; gap: 0.45rem;
    font-weight: 700; font-size: 0.875rem; border-radius: 9999px; border: none;
    cursor: pointer; min-height: 44px; padding: 0 1.4rem;
    transition: transform 0.14s, box-shadow 0.18s, background 0.15s;
}
.btn-primary:not(.btn) { background: var(--brand-grad); color: white; box-shadow: var(--shadow-brand); }
.btn-primary:not(.btn):hover { transform: translateY(-1px); }
.btn-secondary:not(.btn) { background: var(--surface); color: var(--text); border: 1.5px solid var(--border); }
.btn-secondary:not(.btn):hover { background: var(--brand-lt); border-color: var(--brand-mid); color: var(--brand-dk); }

/* ============================
   FORM INPUTS
   ============================ */
.input-field {
    width: 100%;
    padding: 0.7rem 0.95rem;
    background: var(--bg-subtle);
    border: 1.5px solid var(--border);
    border-radius: var(--r-sm);
    color: var(--text);
    font-size: 14px;
    font-weight: 500;
    outline: none;
    transition: border-color 0.15s, box-shadow 0.15s, background 0.15s;
    -webkit-appearance: none;
}
.input-field:focus {
    border-color: var(--brand);
    background: var(--surface);
    box-shadow: 0 0 0 4px rgba(255,107,53,0.14);
}
.input-field::placeholder { color: var(--text-3); font-weight: 400; }

.label-field {
    display: block;
    font-size: 12px;
    font-weight: 700;
    color: var(--text-2);
    margin-bottom: 0.4rem;
}

/* ============================
   STAT CARDS
   ============================ */
.stat-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--r-lg);
    padding: 1.1rem 1.3rem;
    box-shadow: var(--shadow-xs);
}
.stat-number { font-size: 1.9rem; font-weight: 900; letter-spacing: -0.04em; line-height: 1; color: var(--brand-dk); }
.stat-label  { font-size: 11px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.08em; color: var(--text-3); margin-top: 0.3rem; }

/* ============================
   SECTION TITLE
   ============================ */
.section-title { font-size: 1.05rem; font-weight: 800; color: var(--text); letter-spacing: -0.01em; }

/* ============================
   EMPTY STATE
   ============================ */
.empty-state {
    display: flex; flex-direction: column; align-items: center; justify-content: center;
    padding: 3rem 2rem; text-align: center;
    border: 2px dashed var(--brand-mid);
    border-radius: var(--r-xl);
    background: var(--brand-lt);
    color: var(--text-2);
}

/* ============================
   TEACHER / PROFILE CARD
   ============================ */
.teacher-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--r-lg);
    padding: 1rem 1.1rem;
    display: flex;
    align-items: center;
    gap: 0.875rem;
    cursor: pointer;
    transition: border-color 0.15s, box-shadow 0.15s, transform 0.15s;
}
.teacher-card:hover { border-color: var(--brand-mid); box-shadow: var(--shadow-md); transform: translateX(2px); }
.teacher-card:active { transform: scale(0.98); }

.teacher-avatar {
    width: 44px; height: 44px;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid var(--border);
    flex-shrink: 0;
}

/* ============================
   ANIMATIONS
   ============================ */
@keyframes fadeUp {
    from { opacity: 0; transform: translateY(14px); }
    to   { opacity: 1; transform: translateY(0); }
}
.page-enter { animation: fadeUp 0.32s cubic-bezier(0.22, 1, 0.36, 1) both; }

@keyframes pulse-dot {
    0%, 100% { opacity: 1; }
    50%       { opacity: 0.35; }
}
.animate-pulse { animation: pulse-dot 1.6s ease-in-out infinite; }

/* ============================
   SKELETON LOADER
   ============================ */
@keyframes shimmer {
    0%   { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}
.skeleton {
    background: linear-gradient(90deg, #F7EFE9 25%, #F0E2D8 50%, #F7EFE9 75%);
    background-size: 200% 100%;
    animation: shimmer 1.4s ease-in-out infinite;
    border-radius: var(--r-sm);
    color: transparent !important;
}
.skeleton * { visibility: hidden; }

/* ============================
   LOADING BAR
   ============================ */
#loading-bar {
    position: fixed; top: 0; left: 0; right: 0; height: 3px; z-index: 9999;
    background: var(--brand-grad);
    transform: scaleX(0); transform-origin: left;
    transition: transform 0.3s ease;
}
#loading-bar.loading { transform: scaleX(0.7); }
#loading-bar.done    { transform: scaleX(1); opacity: 0; transition: transform 0.2s, opacity 0.3s 0.15s; }

/* ============================
   TOAST
   ============================ */
@keyframes slideRight {
    from { transform: translateX(110%); opacity: 0; }
    to   { transform: translateX(0);    opacity: 1; }
}
.toast-enter { animation: slideRight 0.25s cubic-bezier(0.22, 1, 0.36, 1) both; }

/* ============================
   BOTTOM NAV (mobile)
   ============================ */
.bottom-nav {
    position: fixed; bottom: 0; left: 0; right: 0; z-index: 100;
    display: flex; justify-content: space-around; align-items: center;
    background: var(--accent);
    padding: 0.5rem 0.5rem calc(0.5rem + env(safe-area-inset-bottom));
    border-top: 1px solid rgba(255,255,255,0.08);
}
.bottom-nav-item {
    display: flex; flex-direction: column; align-items: center; gap: 3px;
    padding: 0.4rem 0.875rem; border-radius: var(--r-sm);
    color: rgba(255,255,255,0.45);
    font-size: 9px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.05em;
    transition: color 0.15s, background 0.15s;
    -webkit-tap-highlight-color: transparent;
}
.bottom-nav-item svg { width: 20px; height: 20px; }
.bottom-nav-item.active  { color: white; background: rgba(255,255,255,0.12); }
.bottom-nav-item.active svg { stroke: var(--brand); }
.bottom-nav-item:active  { transform: scale(0.9); opacity: 0.7; transition: 0.1s; }

/* ============================
   PAGE WRAPPER
   ============================ */
@media (max-width: 1023px) {
    .page-content-wrap { padding-bottom: 85px; }
}

/* ============================
   UTILITY
   ============================ */
.tap-feedback { -webkit-tap-highlight-color: transparent; }
.tap-feedback:active { opacity: 0.75; transform: scale(0.97); transition: 0.1s; }

/* Scrollbar */
::-webkit-scrollbar { width: 5px; }
::-webkit-scrollbar-thumb { background: var(--brand-mid); border-radius: 8px; }
::-webkit-scrollbar-thumb:hover { background: var(--brand); }

/* ============================
   PLAYFUL / DISPLAY (v6 "fun")
   ============================ */

/* ============================
   BRAND WORDMARK "LINK"
   ============================ */
/* Distinctive treatment to mettre en évidence le concept "link" */
.brandmark {
    font-family: 'Inter', sans-serif;
    font-weight: 900;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    line-height: 1;
}
/* Header / footer wordmark */
.brandmark-sm { font-size: 1.15rem; letter-spacing: 0.1em; }
/* Giant hero wordmark */
.wordmark-hero {
    display: inline-block;
    font-weight: 900;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    line-height: 0.9;
    font-size: clamp(3.6rem, 15vw, 7.5rem);
}
/* the "i" dot as a little brand node */
.wordmark-hero .node { color: var(--mint); }

/* Giant chunky display headline */
.display {
    font-weight: 900;
    letter-spacing: -0.04em;
    line-height: 0.92;
    text-transform: uppercase;
    font-size: clamp(2.6rem, 9vw, 5.5rem);
}
.display-sm { font-size: clamp(2rem, 6vw, 3.2rem); font-weight: 900; letter-spacing: -0.035em; line-height: 0.98; text-transform: uppercase; }

/* Word-level color pops for headlines */
.pop-orange { color: var(--brand); }
.pop-coral  { color: var(--coral); }
.pop-violet { color: var(--violet); }
.pop-yellow { color: var(--yellow); }
.pop-mint   { color: var(--mint); }

/* Highlight marker behind text */
.hl {
    display: inline-block;
    padding: 0 0.25em;
    border-radius: 0.4em;
    box-decoration-break: clone;
    -webkit-box-decoration-break: clone;
}
.hl-yellow { background: var(--yellow); color: var(--navy); }
.hl-violet { background: var(--violet); color: #fff; }
.hl-orange { background: var(--brand); color: #fff; }
.hl-mint   { background: var(--mint);   color: var(--navy); }

/* Sticker doodle (star / sparkle wrapper) */
.sticker { display: block; position: absolute; pointer-events: none; z-index: 1; animation: floaty 4s ease-in-out infinite; }
.sticker svg { display: block; width: 100%; height: 100%; }
@keyframes floaty { 0%,100% { transform: translateY(0) rotate(0); } 50% { transform: translateY(-8px) rotate(6deg); } }

/* Colored block card (bold, chunky) */
.block-card {
    border-radius: var(--r-xl);
    padding: 1.5rem;
    box-shadow: 0 10px 0 rgba(0,0,0,0.06);
    border: 2px solid var(--navy);
    transition: transform 0.18s cubic-bezier(0.22,1,0.36,1), box-shadow 0.18s;
}
.block-card:hover { transform: translate(-2px,-4px); box-shadow: 0 14px 0 rgba(0,0,0,0.10); }
.block-orange { background: var(--brand);  color: #fff; }
.block-violet { background: var(--violet); color: #fff; }
.block-coral  { background: var(--coral);  color: #fff; }
.block-yellow { background: var(--yellow); color: var(--navy); }
.block-navy   { background: var(--navy);   color: #fff; }
.block-white  { background: #fff; color: var(--navy); }

/* Speech-bubble stat card with a little tail */
.bubble {
    position: relative;
    background: #fff;
    border: 2px solid var(--navy);
    border-radius: var(--r-lg);
    padding: 1.1rem 1.25rem;
}
.bubble::after {
    content: "";
    position: absolute; bottom: -10px; left: 28px;
    width: 18px; height: 18px;
    background: #fff;
    border-right: 2px solid var(--navy);
    border-bottom: 2px solid var(--navy);
    transform: rotate(45deg);
}

/* Pill tag / mini badge */
.pill-tag {
    display: inline-flex; align-items: center; gap: 0.35rem;
    padding: 0.3rem 0.8rem; border-radius: 9999px;
    font-size: 12px; font-weight: 800; letter-spacing: 0.02em;
    border: 2px solid var(--navy);
}

/* Scalloped / wavy divider */
.wave-top {
    background-repeat: repeat-x;
    background-size: 40px 20px;
    height: 20px;
}