/* ============================================================
   نظام الأزرار — Buttons System  v4
   Premium · Production-ready · Fully Animated
   متوافق مع: members-cards.css & profile-modern.css
   تمت الإضافة: Violet Color Variant
   ============================================================ */


/* ============================================================
   § 1  CSS Design Tokens
   ============================================================ */
:root {
    /* — Brand Blue */
    --btn-blue-50:  #eff6ff;
    --btn-blue-100: #dbeafe;
    --btn-blue-500: #80aace;
    --btn-blue-600: #3d77bc;
    --btn-blue-700: #0b4fa7;

    /* — Violet (NEW) */
    --btn-violet-50:  #f5f3ff;
    --btn-violet-100: #ede9fe;
    --btn-violet-500: #8b5cf6;
    --btn-violet-600: #7c3aed;
    --btn-violet-700: #6d28d9;
    --btn-violet-800: #5b21b6;

/* — Semantic */
    --btn-red-500:   #ef4444;
    --btn-red-600:   #dc2626;
    --btn-red-700:   #b91c1c;

    --btn-green-500: #10b981;
    --btn-green-600: #059669;
    --btn-green-700: #047857;

    --btn-amber-500: #f59e0b;
    --btn-amber-600: #d97706;
    --btn-amber-700: #b45309;

    /* — Neutral */
    --btn-slate-100: #f1f5f9;
    --btn-slate-200: #e2e8f0;
    --btn-slate-300: #cbd5e1;
    --btn-slate-400: #94a3b8;
    --btn-slate-500: #64748b;
    --btn-slate-600: #475569;

    /* — Spacing */
    --btn-py-sm:  0.42rem;
    --btn-px-sm:  0.9rem;
    --btn-py-md:  0.625rem;
    --btn-px-md:  1.35rem;
    --btn-py-lg:  0.82rem;
    --btn-px-lg:  1.85rem;

    /* — Radius */
    --btn-r-sm:   10px;
    --btn-r-md:   12px;
    --btn-r-lg:   14px;
    --btn-r-pill: 999px;

    /* — Typography */
    --btn-fw:    600;
    --btn-ls:    0.012em;
    --btn-fs-sm: 0.775rem;
    --btn-fs-md: 0.875rem;
    --btn-fs-lg: 1rem;

    /* — Motion  ← fixed: was 850ms/40ms (inverted) */
    --btn-ease:      cubic-bezier(0.4, 0, 0.2, 1);
    --btn-ease-back: cubic-bezier(0.34, 1.56, 0.64, 1);
    --btn-ease-spring: cubic-bezier(0.34, 1.2, 0.64, 1);
    --btn-dur:       170ms;
    --btn-dur-slow:  260ms;
    --btn-dur-fast:  80ms;

    /* ─────────────────────────────────────────────────────────
       Variant Color Tokens — consumed by .btn-outline engine
       Each variant declares its own set. Adding a new variant
       only requires defining these 8 variables — no extra CSS.
       ───────────────────────────────────────────────────────── */

    /* --btn-c-border    : outline border color
       --btn-c-text      : outline text/icon color
       --btn-c-ring      : focus-ring color (rgba)
       --btn-c-bg-subtle : faint tinted bg shown at rest (optional)
       --btn-c-grad-from : gradient start  (filled hover/active)
       --btn-c-grad-via  : gradient mid    (filled hover/active)
       --btn-c-grad-to   : gradient end    (filled hover/active)
       --btn-c-shadow-rgb: shadow color as R,G,B triplet          */
}


/* ============================================================
   § 2  Base — .btn
   ============================================================ */
.btn {
    display:         inline-flex;
    align-items:     center;
    justify-content: center;
    gap:             0.45rem;
    padding:         var(--btn-py-md) var(--btn-px-md);
    font-size:       var(--btn-fs-md);
    font-weight:     var(--btn-fw);
    letter-spacing:  var(--btn-ls);
    line-height:     1;
    white-space:     nowrap;
    text-decoration: none;
    user-select:     none;
    vertical-align:  middle;
    cursor:          pointer;
    border:          1.5px solid transparent;
    border-radius:   var(--btn-r-md);
    background:      transparent;
    position:        relative;
    overflow:        hidden;
    outline:         none;
    transition:
        background-color  var(--btn-dur) var(--btn-ease),
        background-image  var(--btn-dur) var(--btn-ease),
        border-color      var(--btn-dur) var(--btn-ease),
        box-shadow        var(--btn-dur-slow) var(--btn-ease),
        transform         var(--btn-dur) var(--btn-ease),
        color             var(--btn-dur) var(--btn-ease),
        opacity           var(--btn-dur) var(--btn-ease);
    -webkit-tap-highlight-color: transparent;
    isolation: isolate;
}

/* Icons */
.btn i,
.btn svg {
    font-size:   1em;
    line-height: 1;
    flex-shrink: 0;
    transition:
        transform   var(--btn-dur) var(--btn-ease-back),
        color       var(--btn-dur) var(--btn-ease),
        opacity     var(--btn-dur) var(--btn-ease);
}

/* Focus ring — colored per variant via box-shadow override */
.btn:focus-visible {
    outline:    none;
    box-shadow: 0 0 0 3.5px rgba(79,130,168,0.38) !important;
}

/* Icon micro-interactions */
/* .btn:not(:disabled):not(.btn-disabled):not(.btn-loading):hover i {
    transform: scale(1.1) translateY(-1px);
} */
.btn:not(:disabled):not(.btn-disabled):not(.btn-loading):active i {
    transform:         scale(0.9);
    transition-duration: var(--btn-dur-fast);
}

/* Text label inside btn (for loading state) */
.btn > span,
.btn > .btn-label {
    transition: opacity var(--btn-dur) var(--btn-ease);
}


/* ============================================================
   § 3  Animated Shimmer sweep (shared for colored variants)
   ============================================================ */
.btn-primary::before,
.btn-violet::before,
.btn-slate::before,
.btn-danger::before,
.btn-success::before,
.btn-warning::before {
    content:             '';
    position:            absolute;
    top:                 0;
    left:                -100%;
    width:               60%;
    height:              100%;
    background:          linear-gradient(
                             100deg,
                             transparent 0%,
                             rgba(255,255,255,0.36) 50%,
                             transparent 100%
                         );
    border-radius:       inherit;
    pointer-events:      none;
    z-index:             1;
    transition:          left 0s;
}

/* On hover — trigger sweep once */
.btn-primary:hover:not(:disabled):not(.btn-disabled)::before,
.btn-violet:hover:not(:disabled):not(.btn-disabled)::before,
.btn-slate:hover:not(:disabled):not(.btn-disabled)::before,
.btn-danger:hover:not(:disabled):not(.btn-disabled)::before,
.btn-success:hover:not(:disabled):not(.btn-disabled)::before,
.btn-warning:hover:not(:disabled):not(.btn-disabled)::before {
    left:       140%;
    transition: left 1.5s ease;
}


/* ============================================================
   § 4  Variants
   ============================================================ */

/* ── Primary ─────────────────────────────────────────────── */
.btn-primary {
    background-image: linear-gradient(155deg, #80aace 0%, #3d77bc 55%, #0b4fa7 100%);
    border-color:     var(--btn-blue-700);
    color:            #fff;
    box-shadow:
        0 1px 2px  rgba(0,0,0,0.15),
        0 4px 14px rgba(11,79,167,0.35);
}

.btn-primary:hover:not(:disabled):not(.btn-disabled) {
    background-image: linear-gradient(155deg, #3d77bc 0%, #0b4fa7 100%);
    box-shadow:
        0 2px 5px  rgba(0,0,0,0.16),
        0 10px 28px rgba(11,79,167,0.45),
        0 0 0 0 rgba(11,79,167,0);
    transform: scale(1.02);
}

.btn-primary:active:not(:disabled):not(.btn-disabled) {
    background-image: linear-gradient(155deg, #0b4fa7 0%, #083d84 100%);
    box-shadow:       0 1px 4px rgba(0,0,0,0.2);
    transform:        translateY(0) scale(0.975);
}

.btn-primary:focus-visible {
    box-shadow:
        0 2px 5px  rgba(0,0,0,0.15),
        0 6px 18px rgba(11,79,167,0.4),
        0 0 0 3.5px rgba(11,79,167,0.4) !important;
}

/* ── Violet (NEW) ─────────────────────────────────────────── */
.btn-violet {
    background-image: linear-gradient(155deg, #a78bfa 0%, var(--btn-violet-600) 60%, var(--btn-violet-800) 100%);
    border-color:     var(--btn-violet-700);
    color:            #fff;
    box-shadow:
        0 1px 2px  rgba(0,0,0,0.15),
        0 4px 14px rgba(139,92,246,0.35);
}

.btn-violet:hover:not(:disabled):not(.btn-disabled) {
    background-image: linear-gradient(155deg, var(--btn-violet-600) 0%, var(--btn-violet-700) 100%);
    box-shadow:
        0 2px 5px  rgba(0,0,0,0.16),
        0 10px 28px rgba(139,92,246,0.45),
        0 0 0 0 rgba(139,92,246,0);
    transform: scale(1.02);
}

.btn-violet:active:not(:disabled):not(.btn-disabled) {
    background-image: linear-gradient(155deg, var(--btn-violet-700) 0%, var(--btn-violet-700) 100%);
    box-shadow:       0 1px 4px rgba(0,0,0,0.2);
    transform:        translateY(0) scale(0.975);
}

.btn-violet:focus-visible {
    box-shadow:
        0 2px 5px  rgba(0,0,0,0.15),
        0 6px 18px rgba(139,92,246,0.4),
        0 0 0 3.5px rgba(139,92,246,0.4) !important;
}

/* ── White ───────────────────────────────────────────────── */
.btn-white {
    background-image: linear-gradient(155deg, #ffffff 0%, #f8fafc 60%, #f1f5f9 100%);
    border-color:     #cbd5e1;
    color:            #334155;
    box-shadow:
        0 1px 2px  rgba(0,0,0,0.08),
        0 4px 12px rgba(0,0,0,0.06);
}

.btn-white:hover:not(:disabled):not(.btn-disabled) {
    background-image: linear-gradient(155deg, #f8fafc 0%, #f1f5f9 100%);
    border-color:     #94a3b8;
    box-shadow:
        0 2px 5px  rgba(0,0,0,0.10),
        0 8px 20px rgba(0,0,0,0.10);
    transform: scale(1.02);
}

.btn-white:active:not(:disabled):not(.btn-disabled) {
    background-image: linear-gradient(155deg, #f1f5f9 0%, #e2e8f0 100%);
    box-shadow:       0 1px 4px rgba(0,0,0,0.12);
    transform:        translateY(0) scale(0.975);
}

.btn-white:focus-visible {
    box-shadow:
        0 2px 5px  rgba(0,0,0,0.08),
        0 6px 18px rgba(0,0,0,0.08),
        0 0 0 3.5px rgba(148,163,184,0.5) !important;
}

/* ── Slate (رصاصي — لون الكاردات المؤرشفة) ──────────────── */
.btn-slate {
    background-image: linear-gradient(155deg, #94a3b8 0%, #64748b 55%, #475569 100%);
    border-color:     #475569;
    color:            #fff;
    box-shadow:
        0 1px 2px  rgba(0,0,0,0.15),
        0 4px 14px rgba(71,85,105,0.35);
}

.btn-slate:hover:not(:disabled):not(.btn-disabled) {
    background-image: linear-gradient(155deg, #64748b 0%, #475569 100%);
    box-shadow:
        0 2px 5px  rgba(0,0,0,0.16),
        0 10px 28px rgba(71,85,105,0.45),
        0 0 0 0 rgba(71,85,105,0);
    transform: scale(1.02);
}

.btn-slate:active:not(:disabled):not(.btn-disabled) {
    background-image: linear-gradient(155deg, #475569 0%, #334155 100%);
    box-shadow:       0 1px 4px rgba(0,0,0,0.2);
    transform:        translateY(0) scale(0.975);
}

.btn-slate:focus-visible {
    box-shadow:
        0 2px 5px  rgba(0,0,0,0.15),
        0 6px 18px rgba(71,85,105,0.4),
        0 0 0 3.5px rgba(71,85,105,0.4) !important;
}


/* ============================================================
   § 4a  Outline Engine
   Single source of truth — reads per-variant CSS variables.
   Zero duplication: hover fills with the variant's own gradient.
   ============================================================ */

/* ── Rest state ─────────────────────────────────────────────
   Transparent bg, colored border + text.                    */
.btn-outline {
    background-image: none;
    background-color: var(--btn-c-bg-subtle, transparent);
    border-color:     var(--btn-c-border,  var(--btn-slate-300));
    color:            var(--btn-c-text,    var(--btn-slate-600));
    box-shadow:       0 1px 3px rgba(0,0,0,0.05);
}

/* Shimmer sweep — inherits from solid; suppress it at rest  */
.btn-outline::before {
    background: linear-gradient(
        100deg,
        transparent 0%,
        rgba(255,255,255,0.42) 50%,
        transparent 100%
    ) !important;
    opacity: 0;
    left: -100% !important;
    transition: left 0s, opacity var(--btn-dur) var(--btn-ease) !important;
}

/* ── Hover — morphs into filled variant ─────────────────────
   Gradient comes from variant tokens, matching the solid btn */
.btn-outline:hover:not(:disabled):not(.btn-disabled) {
    background-image: linear-gradient(
        155deg,
        var(--btn-c-grad-from, var(--btn-slate-400)) 0%,
        var(--btn-c-grad-via,  var(--btn-slate-500)) 55%,
        var(--btn-c-grad-to,   var(--btn-slate-600)) 100%
    );
    background-color: transparent;
    border-color:     var(--btn-c-grad-to,   var(--btn-slate-600));
    color:            var(--btn-c-hover-text, #fff);
    box-shadow:
        0 2px 5px  rgba(0,0,0,0.14),
        0 8px 22px rgba(var(--btn-c-shadow-rgb, 100,116,139), 0.38);
    transform: scale(1.02);
}

/* Trigger shimmer sweep on hover (same as solid buttons)    */
.btn-outline:hover:not(:disabled):not(.btn-disabled)::before {
    opacity: 1;
    left:       140% !important;
    transition: left 1.5s ease, opacity 0s !important;
}

/* ── Active ──────────────────────────────────────────────── */
.btn-outline:active:not(:disabled):not(.btn-disabled) {
    background-image: linear-gradient(
        155deg,
        var(--btn-c-grad-to,  var(--btn-slate-600)) 0%,
        var(--btn-c-grad-to,  var(--btn-slate-600)) 100%
    );
    background-color: transparent;
    border-color:     var(--btn-c-grad-to, var(--btn-slate-600));
    color:            var(--btn-c-hover-text, #fff);
    box-shadow:       0 1px 4px rgba(0,0,0,0.18);
    transform:        translateY(0) scale(0.975);
}

/* ── Focus ring ──────────────────────────────────────────── */
.btn-outline:focus-visible {
    box-shadow: 0 0 0 3.5px rgba(var(--btn-c-shadow-rgb, 100,116,139), 0.38) !important;
}


/* ── Danger ──────────────────────────────────────────────── */
.btn-danger {
    background-image: linear-gradient(155deg, #f47272 0%, var(--btn-red-600) 60%, #c01a1a 100%);
    border-color:     var(--btn-red-700);
    color:            #fff;
    box-shadow:
        0 1px 2px  rgba(0,0,0,0.15),
        0 4px 14px rgba(239,68,68,0.35);
}

.btn-danger:hover:not(:disabled):not(.btn-disabled) {
    background-image: linear-gradient(155deg, var(--btn-red-600) 0%, var(--btn-red-700) 100%);
    box-shadow:
        0 2px 5px  rgba(0,0,0,0.16),
        0 10px 28px rgba(239,68,68,0.48);
    transform: scale(1.02);
}

.btn-danger:active:not(:disabled):not(.btn-disabled) {
    background-image: linear-gradient(155deg, var(--btn-red-700) 0%, var(--btn-red-700) 100%);
    box-shadow:       0 1px 4px rgba(0,0,0,0.2);
    transform:        translateY(0) scale(0.975);
}

.btn-danger:focus-visible {
    box-shadow:
        0 2px 5px  rgba(0,0,0,0.15),
        0 6px 18px rgba(239,68,68,0.4),
        0 0 0 3.5px rgba(239,68,68,0.38) !important;
}


/* ── Success ─────────────────────────────────────────────── */
.btn-success {
    background-image: linear-gradient(155deg, #25d4a0 0%, var(--btn-green-600) 60%, #036b4a 100%);
    border-color:     var(--btn-green-700);
    color:            #fff;
    box-shadow:
        0 1px 2px  rgba(0,0,0,0.15),
        0 4px 14px rgba(16,185,129,0.35);
}

.btn-success:hover:not(:disabled):not(.btn-disabled) {
    background-image: linear-gradient(155deg, var(--btn-green-600) 0%, var(--btn-green-700) 100%);
    box-shadow:
        0 2px 5px  rgba(0,0,0,0.16),
        0 10px 28px rgba(16,185,129,0.48);
    transform: scale(1.02);
}

.btn-success:active:not(:disabled):not(.btn-disabled) {
    background-image: linear-gradient(155deg, var(--btn-green-700) 0%, var(--btn-green-700) 100%);
    box-shadow:       0 1px 4px rgba(0,0,0,0.2);
    transform:        translateY(0) scale(0.975);
}

.btn-success:focus-visible {
    box-shadow:
        0 2px 5px  rgba(0,0,0,0.15),
        0 6px 18px rgba(16,185,129,0.4),
        0 0 0 3.5px rgba(16,185,129,0.38) !important;
}


/* ── Warning ─────────────────────────────────────────────── */
.btn-warning {
    background-image: linear-gradient(155deg, #fcd34d 0%, var(--btn-amber-500) 50%, var(--btn-amber-700) 100%);
    border-color:     var(--btn-amber-700);
    color:            #7c3a00;
    text-shadow:      0 1px 0 rgba(255,255,255,0.2);
    box-shadow:
        0 1px 2px  rgba(0,0,0,0.15),
        0 4px 14px rgba(245,158,11,0.38);
}

.btn-warning:hover:not(:disabled):not(.btn-disabled) {
    background-image: linear-gradient(155deg, var(--btn-amber-500) 0%, var(--btn-amber-700) 100%);
    color:            #5c2a00;
    box-shadow:
        0 2px 5px  rgba(0,0,0,0.16),
        0 10px 28px rgba(245,158,11,0.5);
    transform: scale(1.02);
}

.btn-warning:active:not(:disabled):not(.btn-disabled) {
    background-image: linear-gradient(155deg, var(--btn-amber-700) 0%, var(--btn-amber-700) 100%);
    box-shadow:       0 1px 4px rgba(0,0,0,0.2);
    transform:        translateY(0) scale(0.975);
}

.btn-warning:focus-visible {
    box-shadow:
        0 2px 5px  rgba(0,0,0,0.15),
        0 6px 18px rgba(245,158,11,0.4),
        0 0 0 3.5px rgba(245,158,11,0.42) !important;
}


/* ============================================================
   § 4b  Variant Color Definitions for Outline
   Placed AFTER solid variant rules so paired selectors
   (.btn-danger.btn-outline etc.) win the cascade.
   Each block only sets variables — the engine in §4a does the rest.
   To add a new variant: copy one block, change the 8 values.
   ============================================================ */

/* ── Primary Outline ─────────────────────────────────────── */
.btn-primary.btn-outline {
    --btn-c-border:     var(--btn-blue-500);
    --btn-c-text:       var(--btn-blue-600);
    --btn-c-bg-subtle:  rgba(11,79,167,0.1);
    --btn-c-grad-from:  #80aace;
    --btn-c-grad-via:   var(--btn-blue-600);
    --btn-c-grad-to:    #0b4fa7;
    --btn-c-hover-text: #fff;
    --btn-c-shadow-rgb: 11,79,167;
    background-image:   none;
    background-color:   var(--btn-c-bg-subtle);
    border-color:       var(--btn-c-border);
    color:              var(--btn-c-text);
    box-shadow:         0 1px 3px rgba(0,0,0,0.05);
}

/* ── Violet Outline ──────────────────────────────────────── */
.btn-violet.btn-outline {
    --btn-c-border:     var(--btn-violet-500);
    --btn-c-text:       var(--btn-violet-600);
    --btn-c-bg-subtle:  rgba(139,92,246,0.1);
    --btn-c-grad-from:  #a78bfa;
    --btn-c-grad-via:   var(--btn-violet-600);
    --btn-c-grad-to:    var(--btn-violet-800);
    --btn-c-hover-text: #fff;
    --btn-c-shadow-rgb: 139,92,246;
    background-image:   none;
    background-color:   var(--btn-c-bg-subtle);
    border-color:       var(--btn-c-border);
    color:              var(--btn-c-text);
    box-shadow:         0 1px 3px rgba(0,0,0,0.05);
}

/* ── White Outline (للخلفيات الداكنة/الملونة) ───────────── */
.btn-white.btn-outline {
    --btn-c-border:     rgba(255,255,255,0.7);
    --btn-c-text:       #ffffff;
    --btn-c-bg-subtle:  rgba(255,255,255,0.12);
    --btn-c-grad-from:  #ffffff;
    --btn-c-grad-via:   #f8fafc;
    --btn-c-grad-to:    #f1f5f9;
    --btn-c-hover-text: #334155;
    --btn-c-shadow-rgb: 255,255,255;
    background-image:   none;
    background-color:   var(--btn-c-bg-subtle);
    border-color:       var(--btn-c-border);
    color:              var(--btn-c-text);
    box-shadow:         0 1px 3px rgba(0,0,0,0.1);
}

/* ── Slate Outline ───────────────────────────────────────── */
.btn-slate.btn-outline {
    --btn-c-border:     #94a3b8;
    --btn-c-text:       #475569;
    --btn-c-bg-subtle:  rgba(71,85,105,0.08);
    --btn-c-grad-from:  #94a3b8;
    --btn-c-grad-via:   #64748b;
    --btn-c-grad-to:    #475569;
    --btn-c-hover-text: #fff;
    --btn-c-shadow-rgb: 71,85,105;
    background-image:   none;
    background-color:   var(--btn-c-bg-subtle);
    border-color:       var(--btn-c-border);
    color:              var(--btn-c-text);
    box-shadow:         0 1px 3px rgba(0,0,0,0.05);
}


/* ── Danger Outline ──────────────────────────────────────── */
.btn-danger.btn-outline {
    --btn-c-border:     var(--btn-red-500);
    --btn-c-text:       var(--btn-red-600);
    --btn-c-bg-subtle:  rgba(239,68,68,0.3);
    --btn-c-grad-from:  #f47272;
    --btn-c-grad-via:   var(--btn-red-600);
    --btn-c-grad-to:    #c01a1a;
    --btn-c-hover-text: #fff;
    --btn-c-shadow-rgb: 239,68,68;
    background-image:   none;
    background-color:   var(--btn-c-bg-subtle);
    border-color:       var(--btn-c-border);
    color:              var(--btn-c-text);
    box-shadow:         0 1px 3px rgba(0,0,0,0.05);
    text-shadow:        none;
}

/* ── Success Outline ─────────────────────────────────────── */
.btn-success.btn-outline {
    --btn-c-border:     var(--btn-green-500);
    --btn-c-text:       var(--btn-green-600);
    --btn-c-bg-subtle:  rgba(16,185,129,0.3);
    --btn-c-grad-from:  #25d4a0;
    --btn-c-grad-via:   var(--btn-green-600);
    --btn-c-grad-to:    #036b4a;
    --btn-c-hover-text: #fff;
    --btn-c-shadow-rgb: 16,185,129;
    background-image:   none;
    background-color:   var(--btn-c-bg-subtle);
    border-color:       var(--btn-c-border);
    color:              var(--btn-c-text);
    box-shadow:         0 1px 3px rgba(0,0,0,0.05);
}

/* ── Warning Outline ─────────────────────────────────────── */
.btn-warning.btn-outline {
    --btn-c-border:     var(--btn-amber-500);
    --btn-c-text:       var(--btn-amber-700);
    --btn-c-bg-subtle:  rgba(245,158,11,0.3);
    --btn-c-grad-from:  #fcd34d;
    --btn-c-grad-via:   var(--btn-amber-500);
    --btn-c-grad-to:    var(--btn-amber-700);
    --btn-c-hover-text: #7c3a00;
    --btn-c-shadow-rgb: 245,158,11;
    background-image:   none;
    background-color:   var(--btn-c-bg-subtle);
    border-color:       var(--btn-c-border);
    color:              var(--btn-c-text);
    box-shadow:         0 1px 3px rgba(0,0,0,0.05);
    text-shadow:        none;
}



/* ============================================================
   § 5  Size Modifiers
   ============================================================ */

.btn-lg {
    padding:       var(--btn-py-lg) var(--btn-px-lg);
    font-size:     var(--btn-fs-lg);
    border-radius: var(--btn-r-lg);
    gap:           0.55rem;
    font-weight:   650;
}

/* Small */
.btn-sm {
    padding:       var(--btn-py-sm) var(--btn-px-sm);
    font-size:     var(--btn-fs-sm);
    border-radius: var(--btn-r-sm);
    gap:           0.35rem;
}

.btn-icon.btn-sm {
    width:         1.9rem;
    height:        1.9rem;
    border-radius: var(--btn-r-sm);
}

/* Pill */
.btn-pill { border-radius: var(--btn-r-pill); }

/* Block */
.btn-block { width: 100%; display: flex; }


/* ============================================================
   § 6  Icon Button
   ============================================================ */
.btn-icon {
    width:         2.35rem;
    height:        2.35rem;
    padding:       0;
    border-radius: var(--btn-r-md);
    flex-shrink:   0;
    gap:           0;
}

.btn-icon.btn-lg {
    width:         2.9rem;
    height:        2.9rem;
    border-radius: var(--btn-r-lg);
}

.btn-icon.btn-pill { border-radius: 50%; }


/* ============================================================
   § 7  Disabled State
   ============================================================ */
.btn:disabled,
.btn[disabled],
.btn-disabled {
    background-image: none !important;
    background-color: var(--btn-slate-100) !important;
    border-color:     var(--btn-slate-200) !important;
    color:            var(--btn-slate-400) !important;
    box-shadow:       none !important;
    transform:        none !important;
    cursor:           not-allowed !important;
    pointer-events:   none;
    opacity:          0.78;
    text-shadow:      none !important;
}

.btn:disabled i,
.btn-disabled i {
    transform: none !important;
    opacity:   0.6;
}

.btn:disabled::before,
.btn-disabled::before {
    display: none !important;
}


/* ============================================================
   § 8  Loading State — Dual-ring Premium Spinner
   ============================================================ */
.btn-loading {
    cursor:         wait !important;
    pointer-events: none;
}

/* Fade text to transparent */
.btn-loading > *:not(span.btn-ripple) {
    opacity:    0 !important;
    transform:  scale(0.8) !important;
    transition:
        opacity   var(--btn-dur-fast) var(--btn-ease),
        transform var(--btn-dur-fast) var(--btn-ease);
}

.btn-loading::before {
    display: none !important;
}

/* Dual-ring spinner via ::after */
.btn-loading::after {
    content:          '';
    position:         absolute;
    inset:            0;
    margin:           auto;
    width:            1.15em;
    height:           1.15em;
    border-radius:    50%;
    border:           2.5px solid transparent;
    border-top-color:    rgba(255,255,255,0.95);
    border-right-color:  rgba(255,255,255,0.45);
    border-bottom-color: rgba(255,255,255,0.12);
    animation: _btn-spin 0.6s linear infinite;
    z-index: 9;
}

/* Outline spinner — uses variant color via CSS variable     */
.btn-loading.btn-outline::after {
    border-top-color:    var(--btn-c-text,   var(--btn-blue-600));
    border-right-color:  rgba(var(--btn-c-shadow-rgb, 79,130,168), 0.38);
    border-bottom-color: rgba(var(--btn-c-shadow-rgb, 79,130,168), 0.1);
}


@keyframes _btn-spin {
    to { transform: rotate(360deg); }
}


/* ============================================================
   § 9  Button Group
   ============================================================ */
.btn-group {
    display:     inline-flex;
    align-items: stretch;
}

.btn-group .btn {
    border-radius:      0;
    border-right-width: 0;
    position:           relative;
    z-index:            1;
    box-shadow:         none !important;
}

.btn-group .btn:hover,
.btn-group .btn:focus-visible {
    z-index: 2;
}

.btn-group .btn:first-child {
    border-start-start-radius: var(--btn-r-md);
    border-end-start-radius:   var(--btn-r-md);
}

.btn-group .btn:last-child {
    border-start-end-radius: var(--btn-r-md);
    border-end-end-radius:   var(--btn-r-md);
    border-right-width:      1.5px;
}

.btn-group .btn:only-child {
    border-radius:      var(--btn-r-md);
    border-right-width: 1.5px;
}


/* ============================================================
   § 10  Ripple (JS-activated)
   ============================================================ */
.btn-ripple {
    position:       absolute;
    border-radius:  50%;
    background:     rgba(255,255,255,0.32);
    pointer-events: none;
    transform:      scale(0);
    animation:      _btn-ripple 4500ms cubic-bezier(0.2, 0.8, 0.4, 1) forwards;
    z-index:        3;
}

/* Outline ripple uses variant color when available          */
.btn-outline .btn-ripple {
    background: rgba(var(--btn-c-shadow-rgb, 79,130,168), 0.18);
}


@keyframes _btn-ripple {
    to { transform: scale(4.5); opacity: 0; }
}


/* ============================================================
   § 11  Glow Pulse — opt-in via .btn-glow
   Adds a living ambient glow that pulses on colored buttons
   ============================================================ */
.btn-glow.btn-primary {
    animation: _btn-glow-blue 2.4s ease-in-out infinite;
}
.btn-glow.btn-violet {
    animation: _btn-glow-violet 2.4s ease-in-out infinite;
}
.btn-glow.btn-danger {
    animation: _btn-glow-red 2.4s ease-in-out infinite;
}
.btn-glow.btn-success {
    animation: _btn-glow-green 2.4s ease-in-out infinite;
}
.btn-glow.btn-warning {
    animation: _btn-glow-amber 2.4s ease-in-out infinite;
}

@keyframes _btn-glow-blue {
    0%, 100% { box-shadow: 0 1px 2px rgba(0,0,0,0.15), 0 4px 14px rgba(79,130,168,0.35); }
    50%       { box-shadow: 0 1px 2px rgba(0,0,0,0.15), 0 6px 24px rgba(79,130,168,0.65), 0 0 40px rgba(79,130,168,0.2); }
}
@keyframes _btn-glow-violet {
    0%, 100% { box-shadow: 0 1px 2px rgba(0,0,0,0.15), 0 4px 14px rgba(139,92,246,0.35); }
    50%       { box-shadow: 0 1px 2px rgba(0,0,0,0.15), 0 6px 24px rgba(139,92,246,0.65), 0 0 40px rgba(139,92,246,0.2); }
}
@keyframes _btn-glow-red {
    0%, 100% { box-shadow: 0 1px 2px rgba(0,0,0,0.15), 0 4px 14px rgba(239,68,68,0.35); }
    50%       { box-shadow: 0 1px 2px rgba(0,0,0,0.15), 0 6px 24px rgba(239,68,68,0.65), 0 0 40px rgba(239,68,68,0.2); }
}
@keyframes _btn-glow-green {
    0%, 100% { box-shadow: 0 1px 2px rgba(0,0,0,0.15), 0 4px 14px rgba(16,185,129,0.35); }
    50%       { box-shadow: 0 1px 2px rgba(0,0,0,0.15), 0 6px 24px rgba(16,185,129,0.65), 0 0 40px rgba(16,185,129,0.2); }
}
@keyframes _btn-glow-amber {
    0%, 100% { box-shadow: 0 1px 2px rgba(0,0,0,0.15), 0 4px 14px rgba(245,158,11,0.38); }
    50%       { box-shadow: 0 1px 2px rgba(0,0,0,0.15), 0 6px 24px rgba(245,158,11,0.7),  0 0 40px rgba(245,158,11,0.22); }
}


/* ============================================================
   § 12  Gradient Border — opt-in via .btn-grad-border
   Animated rainbow/brand gradient border for outline buttons
   ============================================================ */
.btn-grad-border {
    background:       #fff;
    border:           none !important;
    color:            var(--btn-blue-600);
    padding:          calc(var(--btn-py-md) + 1.5px) calc(var(--btn-px-md) + 1.5px);
    box-shadow:       none;
}

.btn-grad-border::after {
    content:        '';
    position:       absolute;
    inset:          0;
    border-radius:  inherit;
    padding:        1.5px;
    background:     linear-gradient(135deg, #3b82f6, #8b5cf6, #6366f1, #a855f7, #3b82f6);
    background-size: 300% 300%;
    -webkit-mask:
        linear-gradient(#fff 0 0) content-box,
        linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask:
        linear-gradient(#fff 0 0) content-box,
        linear-gradient(#fff 0 0);
    mask-composite: exclude;
    animation:      _btn-grad-border 3s linear infinite;
    z-index:        0;
    pointer-events: none;
}

.btn-grad-border:hover:not(:disabled):not(.btn-disabled) {
    background:  linear-gradient(135deg, #f5f3ff 0%, #ede9fe 100%);
    color:       var(--btn-violet-700);
    transform:   translateY(-1.5px);
    box-shadow:  0 6px 20px rgba(139,92,246,0.25);
}

@keyframes _btn-grad-border {
    0%   { background-position: 0%   50%; }
    50%  { background-position: 100% 50%; }
    100% { background-position: 0%   50%; }
}


/* ============================================================
   § 13  Entrance Animation — opt-in via .btn-animate-in
   ============================================================ */
.btn-animate-in {
    animation: _btn-enter 0.38s var(--btn-ease-spring) both;
}

@keyframes _btn-enter {
    from { opacity: 0; transform: translateY(8px) scale(0.94); }
    to   { opacity: 1; transform: translateY(0)   scale(1);    }
}

/* Stagger delays for groups */
.btn-animate-in:nth-child(2) { animation-delay: 0.06s; }
.btn-animate-in:nth-child(3) { animation-delay: 0.12s; }
.btn-animate-in:nth-child(4) { animation-delay: 0.18s; }
.btn-animate-in:nth-child(5) { animation-delay: 0.24s; }


/* ============================================================
   § 14  Responsive
   ============================================================ */
@media (max-width: 768px) {
    .btn-responsive-block {
        width:   100%;
        display: flex;
    }

    /* Slightly reduce hover lift on touch */
    .btn:hover:not(:disabled):not(.btn-disabled) {
        transform: none;
    }
    .btn:active:not(:disabled):not(.btn-disabled) {
        transform: scale(0.97) !important;
    }
}

@media (prefers-reduced-motion: reduce) {
    .btn,
    .btn::before,
    .btn::after,
    .btn i,
    .btn-glow,
    .btn-grad-border::after,
    .btn-animate-in {
        animation:  none !important;
        transition: none !important;
    }
}


/* ============================================================
   § · زر الترتيب — Order Button (للكروت)
   ============================================================ */

.btn-order {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 30px;
    height: 30px;
    border-radius: 8px;
    border: 1.5px solid #e2e8f0;
    background: #ffffff;
    color: #475569;
    cursor: pointer;
    transition: background 0.2s, border-color 0.2s, color 0.2s;
    font-size: 0.8rem;
    padding: 0;
}

.btn-order:hover:not(:disabled) {
    background: var(--btn-blue-600, #4f82a8);
    border-color: var(--btn-blue-600, #4f82a8);
    color: #ffffff;
}

.btn-order:disabled {
    opacity: 0.35;
    cursor: not-allowed;
}