/* ============================================
   AFNIAH ERP — Contractor Portal Login
   Dark/Light Theme Support
   ============================================ */

/* ── Dark Theme (default) ── */
:root {
    --gold: #c4a35a; --gold-light: #d4b96a; --gold-dark: #a8893e;
    --error-red: #d44638; --error-bg: #fef2f1;
    --font-primary: 'Outfit', sans-serif;
    --radius-sm: 6px;
    --ease-out: cubic-bezier(0.25, 0.46, 0.45, 0.94);
    /* Semantic tokens */
    --bg-body: #1a1a1a;
    --bg-panel: #0a0a0a;
    --bg-form: #1a1a1a;
    --bg-input: #2d2d2d;
    --text-primary: #ffffff;
    --text-secondary: #c8c8c8;
    --text-muted: #9a9a9a;
    --text-faint: #6b6b6b;
    --text-ghost: #4a4a4a;
    --border-subtle: rgba(255,255,255,0.06);
    --border-separator: rgba(196,163,90,0.15);
    --arch-line: rgba(196,163,90,0.04);
    --arch-grid: rgba(196,163,90,0.02);
    --circle-border-1: rgba(196,163,90,0.06);
    --circle-border-2: rgba(196,163,90,0.04);
    --logo-filter: brightness(0) invert(1);
    --input-focus-bg: rgba(196,163,90,0.04);
    --input-focus-ring: rgba(196,163,90,0.08);
    --shadow-gold: 0 4px 24px rgba(196,163,90,0.25);
    --shadow-toggle: 0 2px 12px rgba(0,0,0,0.3);
    --btn-text: #0a0a0a;
}

/* ── Light Theme ── */
[data-theme="light"] {
    --gold: #a8893e; --gold-light: #c4a35a; --gold-dark: #8a6f30;
    --bg-body: #f4f1ec;
    --bg-panel: #ffffff;
    --bg-form: #f4f1ec;
    --bg-input: #ffffff;
    --text-primary: #1a1a1a;
    --text-secondary: #3d3d3d;
    --text-muted: #6b6b6b;
    --text-faint: #9a9a9a;
    --text-ghost: #c8c8c8;
    --border-subtle: rgba(0,0,0,0.08);
    --border-separator: rgba(0,0,0,0.06);
    --arch-line: rgba(196,163,90,0.07);
    --arch-grid: rgba(196,163,90,0.035);
    --circle-border-1: rgba(196,163,90,0.12);
    --circle-border-2: rgba(196,163,90,0.08);
    --logo-filter: brightness(0);
    --input-focus-bg: rgba(196,163,90,0.06);
    --input-focus-ring: rgba(196,163,90,0.12);
    --shadow-gold: 0 4px 24px rgba(196,163,90,0.18);
    --shadow-toggle: 0 2px 12px rgba(0,0,0,0.08);
    --btn-text: #ffffff;
}

/* ── Smooth Transition ── */
html.theme-transitioning,
html.theme-transitioning *,
html.theme-transitioning *::before,
html.theme-transitioning *::after {
    transition: background-color 0.45s ease, color 0.45s ease, border-color 0.45s ease,
                box-shadow 0.45s ease, filter 0.45s ease, opacity 0.45s ease !important;
}

/* ── Reset ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 16px; -webkit-font-smoothing: antialiased; }
body {
    font-family: var(--font-primary);
    background: var(--bg-body); color: var(--text-primary);
    min-height: 100vh; overflow-x: hidden; position: relative;
}

/* ── Theme Toggle ── */
.theme-toggle {
    position: fixed; top: 1.25rem; right: 1.25rem; z-index: 1000;
    width: 44px; height: 44px; border-radius: 50%;
    background: var(--bg-input); border: 1px solid var(--border-subtle);
    cursor: pointer; display: flex; align-items: center; justify-content: center;
    box-shadow: var(--shadow-toggle);
    transition: transform 0.3s var(--ease-out), border-color 0.3s, box-shadow 0.3s;
}
.theme-toggle:hover { transform: scale(1.1); border-color: var(--gold); box-shadow: 0 4px 20px rgba(196,163,90,0.2); }
.theme-toggle:active { transform: scale(0.92); }
.theme-toggle-icons { position: relative; width: 20px; height: 20px; }
.theme-icon-sun, .theme-icon-moon {
    position: absolute; inset: 0;
    transition: opacity 0.4s ease, transform 0.4s ease;
}
.theme-icon-sun svg, .theme-icon-moon svg { width: 20px; height: 20px; color: var(--gold); }

/* ── Background ── */
.arch-bg { position: fixed; inset: 0; z-index: 0; overflow: hidden; pointer-events: none; }
.arch-line { position: absolute; background: var(--arch-line); }
.arch-line-1 { width: 1px; height: 100%; left: 25%; }
.arch-line-2 { width: 1px; height: 100%; left: 50%; }
.arch-line-3 { width: 100%; height: 1px; top: 33%; }
.arch-line-4 { width: 100%; height: 1px; top: 66%; }
.arch-grid {
    position: absolute; inset: 0;
    background-image: linear-gradient(var(--arch-grid) 1px, transparent 1px),
        linear-gradient(90deg, var(--arch-grid) 1px, transparent 1px);
    background-size: 80px 80px;
}

/* ── Container ── */
.login-container { position: relative; z-index: 1; display: flex; min-height: 100vh; }

/* ── Brand Panel ── */
.brand-panel {
    flex: 0 0 46%; background: var(--bg-panel);
    display: flex; flex-direction: column; justify-content: space-between;
    padding: 3rem; position: relative; overflow: hidden;
}
.brand-panel::before {
    content: ''; position: absolute; top: -30%; right: -20%;
    width: 600px; height: 600px;
    border: 1px solid var(--circle-border-1); border-radius: 50%;
}
.brand-panel::after {
    content: ''; position: absolute; bottom: -10%; left: -10%;
    width: 400px; height: 400px;
    border: 1px solid var(--circle-border-2); border-radius: 50%;
}
.brand-content { flex: 1; display: flex; flex-direction: column; justify-content: center; z-index: 1; }

.brand-badge {
    display: inline-flex; align-self: flex-start;
    padding: 6px 16px; border: 1px solid var(--gold); color: var(--gold);
    font-size: 0.65rem; font-weight: 600; letter-spacing: 0.2em;
    border-radius: 100px; margin-bottom: 2.5rem;
    animation: fadeSlideDown 0.8s var(--ease-out) both 0.2s;
}
.brand-logo { margin-bottom: 2.5rem; animation: fadeSlideDown 0.8s var(--ease-out) both 0.35s; }
.brand-logo img { height: 52px; width: auto; filter: var(--logo-filter); }

.brand-tagline {
    font-size: 3.2rem; font-weight: 700; line-height: 1.1;
    letter-spacing: -0.03em; margin-bottom: 1.5rem; color: var(--text-primary);
    animation: fadeSlideDown 0.8s var(--ease-out) both 0.5s;
}
.gold-accent { color: var(--gold); position: relative; }
.gold-accent::after {
    content: ''; position: absolute; bottom: 2px; left: 0;
    width: 100%; height: 2px;
    background: linear-gradient(90deg, var(--gold), transparent);
}
.brand-desc {
    font-size: 0.95rem; font-weight: 300; color: var(--text-muted);
    line-height: 1.7; max-width: 420px; margin-bottom: 3rem;
    animation: fadeSlideDown 0.8s var(--ease-out) both 0.65s;
}
.brand-stats { display: flex; gap: 3rem; animation: fadeSlideDown 0.8s var(--ease-out) both 0.8s; }
.stat-item { display: flex; flex-direction: column; gap: 4px; }
.stat-number { font-size: 2rem; font-weight: 700; color: var(--gold); }
.stat-label { font-size: 0.75rem; color: var(--text-faint); letter-spacing: 0.05em; text-transform: uppercase; }
.brand-footer { z-index: 1; font-size: 0.75rem; color: var(--text-ghost); animation: fadeSlideDown 0.8s var(--ease-out) both 1s; }

/* ── Form Panel ── */
.form-panel {
    flex: 1; display: flex; align-items: center; justify-content: center;
    padding: 3rem; background: var(--bg-form); position: relative;
}
.form-panel::before {
    content: ''; position: absolute; left: 0; top: 0;
    height: 100%; width: 1px;
    background: linear-gradient(to bottom, transparent, var(--border-separator) 30%, var(--border-separator) 70%, transparent);
}
.form-wrapper { width: 100%; max-width: 420px; animation: fadeSlideUp 0.8s var(--ease-out) both 0.4s; }
.mobile-logo { display: none; margin-bottom: 2rem; }
.mobile-logo img { height: 40px; width: auto; filter: var(--logo-filter); }
.form-header { margin-bottom: 2.5rem; }
.form-header h2 { font-size: 1.75rem; font-weight: 600; letter-spacing: -0.02em; margin-bottom: 0.5rem; color: var(--text-primary); }
.form-header p { font-size: 0.9rem; color: var(--text-muted); font-weight: 300; }

/* ── Inputs ── */
.input-group { margin-bottom: 1.5rem; }
.input-group label { display: block; font-size: 0.78rem; font-weight: 500; color: var(--text-secondary); margin-bottom: 0.5rem; }
.input-wrapper { position: relative; display: flex; align-items: center; }
.input-icon { position: absolute; left: 14px; width: 18px; height: 18px; color: var(--text-faint); transition: color 0.3s; pointer-events: none; z-index: 1; }
.input-wrapper input {
    width: 100%; padding: 14px 14px 14px 44px;
    background: var(--bg-input); border: 1px solid var(--border-subtle);
    border-radius: var(--radius-sm); color: var(--text-primary);
    font-family: var(--font-primary); font-size: 0.9rem; outline: none;
    transition: all 0.3s var(--ease-out);
}
.input-wrapper input::placeholder { color: var(--text-ghost); font-weight: 300; }
.input-wrapper input:focus { border-color: var(--gold); background: var(--input-focus-bg); box-shadow: 0 0 0 3px var(--input-focus-ring); }
.input-group:focus-within .input-icon { color: var(--gold); }
.input-group.error .input-wrapper input { border-color: var(--error-red); background: rgba(212,70,56,0.04); }
.input-group.error .input-icon { color: var(--error-red); }
.input-error { display: block; font-size: 0.72rem; color: var(--error-red); margin-top: 6px; opacity: 0; transform: translateY(-4px); transition: all 0.3s var(--ease-out); }
.input-group.error .input-error { opacity: 1; transform: translateY(0); }

.toggle-pwd { position: absolute; right: 12px; background: none; border: none; cursor: pointer; padding: 4px; display: flex; align-items: center; }
.toggle-pwd svg { width: 18px; height: 18px; color: var(--text-faint); transition: color 0.2s; }
.toggle-pwd:hover svg { color: var(--text-secondary); }

/* ── Options ── */
.form-options { display: flex; align-items: center; justify-content: space-between; margin-bottom: 2rem; }
.remember-me { display: flex; align-items: center; gap: 8px; font-size: 0.8rem; color: var(--text-muted); cursor: pointer; user-select: none; }
.remember-me input[type="checkbox"] { display: none; }
.checkmark { width: 16px; height: 16px; border: 1.5px solid var(--text-ghost); border-radius: 3px; display: flex; align-items: center; justify-content: center; transition: all 0.2s; flex-shrink: 0; }
.remember-me input:checked + .checkmark { background: var(--gold); border-color: var(--gold); }
.remember-me input:checked + .checkmark::after { content: ''; width: 5px; height: 8px; border: solid var(--btn-text); border-width: 0 1.5px 1.5px 0; transform: rotate(45deg) translate(-1px, -1px); }
.forgot-link { font-size: 0.8rem; color: var(--gold); text-decoration: none; font-weight: 500; }
.forgot-link:hover { color: var(--gold-light); }

/* ── Button ── */
.btn-login {
    width: 100%; padding: 15px 24px; background: var(--gold); color: var(--btn-text);
    border: none; border-radius: var(--radius-sm);
    font-family: var(--font-primary); font-size: 0.9rem; font-weight: 600;
    cursor: pointer; display: flex; align-items: center; justify-content: center; gap: 10px;
    transition: all 0.3s var(--ease-out); position: relative; overflow: hidden;
}
.btn-login:hover { background: var(--gold-light); box-shadow: var(--shadow-gold); transform: translateY(-1px); }
.btn-login:active { transform: translateY(0); }
.btn-login .btn-arrow { width: 18px; height: 18px; transition: transform 0.3s; }
.btn-login:hover .btn-arrow { transform: translateX(3px); }
.btn-loader { display: none; }
.btn-login.loading .btn-text, .btn-login.loading .btn-arrow { opacity: 0; }
.btn-login.loading .btn-loader { display: flex; position: absolute; }
.spinner { width: 22px; height: 22px; border: 2.5px solid rgba(10,10,10,0.2); border-top-color: var(--btn-text); border-radius: 50%; animation: spin 0.7s linear infinite; }

/* ── Toast ── */
.toast-error { display: flex; align-items: center; gap: 10px; padding: 12px 16px; background: var(--error-bg); border: 1px solid rgba(212,70,56,0.2); border-radius: var(--radius-sm); margin-top: 1.5rem; opacity: 0; transform: translateY(-8px); transition: all 0.4s var(--ease-out); pointer-events: none; }
.toast-error.visible { opacity: 1; transform: translateY(0); pointer-events: auto; }
.toast-error svg { width: 18px; height: 18px; color: var(--error-red); flex-shrink: 0; }
.toast-error span { font-size: 0.82rem; color: var(--error-red); font-weight: 500; }

.form-footer { margin-top: 2.5rem; text-align: center; }
.form-footer p { font-size: 0.78rem; color: var(--text-faint); }
.form-footer a { color: var(--gold); text-decoration: none; font-weight: 500; }
.form-footer a:hover { text-decoration: underline; }

/* ── Animations ── */
@keyframes fadeSlideDown { from { opacity: 0; transform: translateY(-16px); } to { opacity: 1; transform: translateY(0); } }
@keyframes fadeSlideUp { from { opacity: 0; transform: translateY(20px); } to { opacity: 1; transform: translateY(0); } }
@keyframes spin { to { transform: rotate(360deg); } }
@keyframes shake { 0%,100%{transform:translateX(0)}20%{transform:translateX(-8px)}40%{transform:translateX(8px)}60%{transform:translateX(-5px)}80%{transform:translateX(5px)} }
.shake { animation: shake 0.5s var(--ease-out); }

/* ── Responsive ── */
@media (max-width: 1024px) { .brand-panel{flex:0 0 42%;padding:2.5rem} .brand-tagline{font-size:2.6rem} }
@media (max-width: 768px) { .login-container{flex-direction:column} .brand-panel{display:none} .mobile-logo{display:block} .form-panel{min-height:100vh;padding:2rem 1.5rem;align-items:flex-start;padding-top:4rem} .form-panel::before{display:none} .form-wrapper{max-width:100%} .form-header h2{font-size:1.5rem} .theme-toggle{top:1rem;right:1rem;width:40px;height:40px} }
@media (max-width: 380px) { .form-panel{padding:1.5rem 1.25rem;padding-top:3rem} .form-options{flex-direction:column;align-items:flex-start;gap:12px} }