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

:root {
    --green-950: #071209;
    --green-900: #0f2912;
    --green-800: #163b1a;
    --green-700: #1e5224;
    --green-600: #27692e;
    --green-500: #318038;
    --green-400: #4ca855;
    --green-300: #70c278;
    --green-200: #a8ddb0;
    --green-100: #d4f0d8;
    --green-50:  #edf8ef;
    --amber-400: #f59e0b;
    --amber-300: #fbbf24;
    --red-400:   #ef4444;
    --white:     #ffffff;

    --font-display: 'Syne', sans-serif;
    --font-body:    'DM Sans', sans-serif;
    --font-mono:    'DM Mono', monospace;
}

html, body {
    height: 100%;
    font-family: var(--font-body);
    background: var(--green-950);
    overflow: hidden;
}

.btn-error {
    animation: bounce-error 0.4s ease-in-out;
    border: 1px solid #ff4d4d;
}

/* ── CANVAS BACKGROUND ─────────────────────────── */
#bgCanvas {
    position: fixed;
    inset: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
}

/* ── GRAIN OVERLAY ─────────────────────────────── */
.grain {
    position: fixed;
    inset: -50%;
    width: 200%;
    height: 200%;
    z-index: 1;
    opacity: .04;
    pointer-events: none;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 512 512' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.75' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)'/%3E%3C/svg%3E");
    animation: grainMove 6s steps(10) infinite;
}
@keyframes grainMove {
    0%,100% { transform: translate(0,0); }
    10%  { transform: translate(-2%,-3%); }
    20%  { transform: translate(3%,2%); }
    30%  { transform: translate(-1%,4%); }
    40%  { transform: translate(4%,-1%); }
    50%  { transform: translate(-3%,3%); }
    60%  { transform: translate(2%,-4%); }
    70%  { transform: translate(-4%,1%); }
    80%  { transform: translate(1%,3%); }
    90%  { transform: translate(-2%,-2%); }
}

/* ── PAGE SHELL ────────────────────────────────── */
.page {
    position: relative;
    z-index: 10;
    display: grid;
    grid-template-columns: 1fr 1fr;
    height: 100vh;
    width: 100%;
}

/* ── LEFT PANEL ────────────────────────────────── */
.left-panel {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    padding: 48px 56px;
    position: relative;
    overflow: hidden;
}

/* Animated leaf shapes */
.leaf {
    position: absolute;
    border-radius: 100% 0 100% 0;
    opacity: 0;
    animation: leafAppear 1.2s cubic-bezier(.34,1.56,.64,1) forwards;
}
.leaf-1 {
    width: 320px; height: 320px;
    background: radial-gradient(circle at 30% 30%, rgba(78,168,85,.18), transparent 70%);
    top: -60px; left: -80px;
    animation-delay: .2s;
}
.leaf-2 {
    width: 240px; height: 240px;
    background: radial-gradient(circle at 70% 70%, rgba(39,105,46,.22), transparent 70%);
    bottom: 80px; left: 40px;
    border-radius: 0 100% 0 100%;
    animation-delay: .5s;
}
.leaf-3 {
    width: 180px; height: 180px;
    background: radial-gradient(circle at 50% 50%, rgba(112,194,120,.12), transparent 70%);
    top: 50%; right: -20px;
    animation-delay: .8s;
}
@keyframes leafAppear {
    from { opacity:0; transform: scale(.5) rotate(-20deg); }
    to   { opacity:1; transform: scale(1) rotate(0deg); }
}

/* Brand */
.brand {
    display: flex;
    align-items: center;
    gap: 14px;
    opacity: 0;
    animation: fadeUp .7s ease .1s forwards;
}
.brand-icon {
    width: 48px; height: 48px;
    background: linear-gradient(135deg, var(--green-500), var(--green-700));
    border-radius: 14px;
    display: flex; align-items: center; justify-content: center;
    font-size: 22px;
    box-shadow: 0 0 0 4px rgba(49,128,56,.25), 0 8px 24px rgba(0,0,0,.3);
}
.brand-name {
    font-family: var(--font-display);
    font-size: 22px;
    font-weight: 800;
    color: var(--white);
    letter-spacing: -.4px;
}
.brand-tagline {
    font-size: 11px;
    color: var(--green-200);
    opacity: .6;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    margin-top: 1px;
}

/* Hero text */
.hero {
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: 40px 0;
}
.hero-label {
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 2px;
    color: var(--green-300);
    opacity: 0;
    animation: fadeUp .6s ease .3s forwards;
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 20px;
}
.hero-label::before {
    content: '';
    display: block;
    width: 28px; height: 2px;
    background: var(--green-400);
    border-radius: 99px;
}
.hero-title {
    font-family: var(--font-display);
    font-size: clamp(36px, 4vw, 56px);
    font-weight: 800;
    color: var(--white);
    line-height: 1.08;
    letter-spacing: -2px;
    opacity: 0;
    animation: fadeUp .7s ease .45s forwards;
}
.hero-title em {
    font-style: normal;
    color: var(--green-300);
    position: relative;
}
.hero-title em::after {
    content: '';
    position: absolute;
    bottom: 2px; left: 0; right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--green-400), var(--green-300));
    border-radius: 99px;
    transform: scaleX(0);
    transform-origin: left;
    animation: underlineIn .6s ease 1.2s forwards;
}
@keyframes underlineIn { to { transform: scaleX(1); } }

.hero-desc {
    font-size: 15px;
    color: var(--green-200);
    opacity: 0;
    line-height: 1.65;
    margin-top: 18px;
    max-width: 400px;
    animation: fadeUp .7s ease .6s forwards;
}

/* Stats strip */
.stats-strip {
    display: flex;
    gap: 32px;
    opacity: 0;
    animation: fadeUp .7s ease .75s forwards;
    margin-top: 44px;
}
.stat-pill {
    display: flex;
    flex-direction: column;
}
.stat-num {
    font-family: var(--font-display);
    font-size: 26px;
    font-weight: 800;
    color: var(--white);
    letter-spacing: -1px;
    line-height: 1;
}
.stat-lbl {
    font-size: 11px;
    color: var(--green-200);
    opacity: .55;
    margin-top: 3px;
    text-transform: uppercase;
    letter-spacing: .8px;
}
.stat-divider {
    width: 1px;
    background: rgba(255,255,255,.1);
    align-self: stretch;
}

/* Features list */
.features {
    display: flex;
    flex-direction: column;
    gap: 12px;
    opacity: 0;
    animation: fadeUp .7s ease .9s forwards;
}
.feature-item {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 13px;
    color: var(--green-200);
    opacity: .7;
}
.feature-dot {
    width: 6px; height: 6px;
    background: var(--green-400);
    border-radius: 50%;
    flex-shrink: 0;
    box-shadow: 0 0 8px var(--green-400);
}

/* ── RIGHT PANEL ────────────────────────────────── */
.right-panel {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 40px;
    position: relative;
}

/* Glassmorphism card */
.login-card {
    width: 90%;
    max-width: 420px;
    height: auto;
    background: rgba(255,255,255,.06);
    backdrop-filter: blur(24px) saturate(180%);
    -webkit-backdrop-filter: blur(24px) saturate(180%);
    border: 1px solid rgba(255,255,255,.12);
    border-radius: 28px;
    padding: 44px 40px;
    box-shadow:
            0 40px 80px rgba(0,0,0,.4),
            0 0 0 1px rgba(255,255,255,.05) inset,
            0 1px 0 rgba(255,255,255,.15) inset;
    opacity: 0;
    transform: translateX(30px) scale(.97);
    animation: cardIn .9s cubic-bezier(.34,1.2,.64,1) .3s forwards;
}
@keyframes cardIn {
    to { opacity:1; transform:translateX(0) scale(1); }
}

/* Card header */
.card-header {
    text-align: center;
    margin-bottom: 36px;
}
.card-icon {
    width: 56px; height: 56px;
    background: linear-gradient(135deg, var(--green-500), var(--green-700));
    border-radius: 16px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    box-shadow: 0 8px 24px rgba(39,105,46,.5), 0 0 0 6px rgba(49,128,56,.15);
    margin-bottom: 20px;
    animation: iconPulse 3s ease-in-out 1.5s infinite;
}
@keyframes iconPulse {
    0%,100% { box-shadow: 0 8px 24px rgba(39,105,46,.5), 0 0 0 6px rgba(49,128,56,.15); }
    50%      { box-shadow: 0 8px 32px rgba(39,105,46,.7), 0 0 0 10px rgba(49,128,56,.08); }
}
.card-title {
    font-family: var(--font-display);
    font-size: 24px;
    font-weight: 800;
    color: var(--white);
    letter-spacing: -.5px;
    margin-bottom: 6px;
}
.card-sub {
    font-size: 13px;
    color: rgba(168,221,176,.55);
    line-height: 1.5;
}

/* Role selector */
.role-selector {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 6px;
    background: rgba(0,0,0,.2);
    border-radius: 14px;
    padding: 5px;
    margin-bottom: 28px;
    border: 1px solid rgba(255,255,255,.06);
}
.role-btn {
    padding: 9px 6px;
    border: none;
    border-radius: 10px;
    background: transparent;
    color: rgba(168,221,176,.5);
    font-family: var(--font-body);
    font-size: 11px;
    font-weight: 500;
    cursor: pointer;
    transition: all .25s cubic-bezier(.34,1.56,.64,1);
    text-align: center;
    line-height: 1.3;
}
.role-btn .role-icon { display: block; font-size: 16px; margin-bottom: 2px; }
.role-btn:hover { color: var(--green-200); background: rgba(255,255,255,.05); }
.role-btn.active {
    background: linear-gradient(135deg, rgba(49,128,56,.6), rgba(39,105,46,.4));
    color: var(--white);
    box-shadow: 0 2px 12px rgba(0,0,0,.3), 0 0 0 1px rgba(255,255,255,.1) inset;
}

/* Form */
.form-group {
    margin-bottom: 18px;
    position: relative;
}
.form-label {
    display: block;
    font-size: 11.5px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: .8px;
    color: rgba(168,221,176,.55);
    margin-bottom: 8px;
}
.input-wrap {
    position: relative;
}
.input-icon {
    position: absolute;
    left: 15px;
    top: 50%;
    transform: translateY(-50%);
    font-size: 14px;
    color: rgba(168,221,176,.35);
    pointer-events: none;
    transition: color .25s;
    z-index: 2;
}
.form-input {
    width: 100%;
    padding: 14px 44px 14px 44px;
    background: rgba(0,0,0,.25);
    border: 1.5px solid rgba(255,255,255,.08);
    border-radius: 12px;
    font-family: var(--font-body);
    font-size: 14px;
    color: var(--white);
    outline: none;
    transition: all .25s cubic-bezier(.4,0,.2,1);
    caret-color: var(--green-400);
}
.form-input::placeholder { color: rgba(168,221,176,.25); }
.form-input:hover {
    border-color: rgba(255,255,255,.14);
    background: rgba(0,0,0,.3);
}
.form-input:focus {
    border-color: var(--green-500);
    background: rgba(0,0,0,.35);
    box-shadow: 0 0 0 4px rgba(49,128,56,.2), 0 0 20px rgba(49,128,56,.1);
}
.form-input:focus + .input-focus-line { transform: scaleX(1); }
.form-group:focus-within .input-icon { color: var(--green-400); }

/* Eye toggle */
.eye-toggle {
    position: absolute;
    right: 14px;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    cursor: pointer;
    color: rgba(168,221,176,.35);
    font-size: 14px;
    padding: 4px;
    transition: color .2s;
    z-index: 2;
}
.eye-toggle:hover { color: var(--green-300); }

/* Remember + forgot */
.form-options {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 24px;
}
.remember-wrap {
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
}
.remember-wrap input[type="checkbox"] {
    width: 16px; height: 16px;
    accent-color: var(--green-500);
    cursor: pointer;
}
.remember-label {
    font-size: 13px;
    color: rgba(168,221,176,.6);
    user-select: none;
}
.forgot-link {
    font-size: 13px;
    color: var(--green-300);
    text-decoration: none;
    opacity: .8;
    transition: opacity .2s;
}
.forgot-link:hover { opacity: 1; }

/* Submit button */
.btn-submit {
    width: 100%;
    padding: 15px;
    background: linear-gradient(135deg, var(--green-500) 0%, var(--green-600) 50%, var(--green-700) 100%);
    border: none;
    border-radius: 12px;
    color: var(--white);
    font-family: var(--font-display);
    font-size: 15px;
    font-weight: 700;
    letter-spacing: .3px;
    cursor: pointer;
    position: relative;
    overflow: hidden;
    transition: all .3s cubic-bezier(.34,1.56,.64,1);
    box-shadow: 0 8px 24px rgba(39,105,46,.45), 0 1px 0 rgba(255,255,255,.15) inset;
}
.btn-submit::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(255,255,255,.12), transparent);
    opacity: 0;
    transition: opacity .3s;
}
.btn-submit::after {
    content: '';
    position: absolute;
    top: 50%; left: 50%;
    width: 0; height: 0;
    background: rgba(255,255,255,.15);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    transition: width .6s ease, height .6s ease, opacity .6s ease;
    opacity: 0;
}
.btn-submit:hover { transform: translateY(-2px); box-shadow: 0 14px 32px rgba(39,105,46,.5); }
.btn-submit:hover::before { opacity: 1; }
.btn-submit:active { transform: translateY(0); }
.btn-submit:active::after { width: 400px; height: 400px; opacity: 0; }

/* Loading state */
.btn-submit.loading {
    pointer-events: none;
    opacity: .85;
}
.btn-submit.loading .btn-text { opacity: 0; }
.btn-submit.loading .btn-spinner { opacity: 1; }
.btn-text, .btn-spinner {
    position: absolute;
    left: 50%; top: 50%;
    transform: translate(-50%, -50%);
    transition: opacity .2s;
    white-space: nowrap;
}
.btn-text { opacity: 1; }
.btn-spinner { opacity: 0; }
.spinner-ring {
    width: 20px; height: 20px;
    border: 2px solid rgba(255,255,255,.3);
    border-top-color: white;
    border-radius: 50%;
    animation: spin .7s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* Error message */
.error-msg {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 14px;
    background: rgba(239,68,68,.15);
    border: 1px solid rgba(239,68,68,.25);
    border-radius: 10px;
    font-size: 13px;
    color: #fca5a5;
    margin-bottom: 16px;
    opacity: 0;
    transform: translateY(-6px);
    transition: all .3s ease;
    pointer-events: none;
}
.error-msg.show { opacity: 1; transform: translateY(0); pointer-events: all; }

/* success message */
.success-msg {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 14px;
    background: rgb(50, 142, 100);
    border: 1px solid rgb(2, 237, 131);
    border-radius: 10px;
    font-size: 13px;
    color: #2e6003;
    margin-bottom: 16px;
    opacity: 0;
    transform: translateY(-6px);
    transition: all .3s ease;
    pointer-events: none;
}
.success-msg.show { opacity: 1; transform: translateY(0); pointer-events: all; }

/* Divider */
.divider {
    display: flex;
    align-items: center;
    gap: 14px;
    margin: 24px 0;
}
.divider-line {
    flex: 1;
    height: 1px;
    background: rgba(255,255,255,.08);
}
.divider-text {
    font-size: 11px;
    color: rgba(168,221,176,.3);
    text-transform: uppercase;
    letter-spacing: 1px;
    white-space: nowrap;
}

/* Footer */
.card-footer {
    text-align: center;
    margin-top: 22px;
}
.footer-text {
    font-size: 12px;
    color: rgba(168,221,176,.3);
    line-height: 1.5;
}
.footer-version {
    font-family: var(--font-mono);
    font-size: 10px;
    color: rgba(168,221,176,.2);
    margin-top: 10px;
    letter-spacing: .5px;
}

/* Input validation states */
.form-input.valid   { border-color: var(--green-500); }
.form-input.invalid { border-color: var(--red-400); box-shadow: 0 0 0 3px rgba(239,68,68,.15); }
.valid-icon {
    position: absolute;
    right: 14px; top: 50%;
    transform: translateY(-50%);
    font-size: 13px;
    color: var(--green-400);
    opacity: 0;
    transition: opacity .25s;
    z-index: 2;
}
.form-input.valid ~ .valid-icon { opacity: 1; }

/* Strength meter */
.strength-meter {
    display: flex;
    gap: 4px;
    margin-top: 8px;
}
.strength-bar {
    flex: 1; height: 3px;
    background: rgba(255,255,255,.1);
    border-radius: 99px;
    transition: background .3s;
}
.strength-bar.weak   { background: var(--red-400); }
.strength-bar.medium { background: var(--amber-400); }
.strength-bar.strong { background: var(--green-400); }

/* ── FLOATING PARTICLES (CSS-only) ─────────────── */
.particles {
    position: fixed;
    inset: 0;
    z-index: 2;
    pointer-events: none;
    overflow: hidden;
}
.particle {
    position: absolute;
    border-radius: 50%;
    opacity: 0;
    animation: float linear infinite;
}
@keyframes float {
    0%   { opacity: 0; transform: translateY(0) rotate(0deg) scale(0); }
    10%  { opacity: .6; transform: translateY(-10vh) rotate(36deg) scale(1); }
    90%  { opacity: .3; }
    100% { opacity: 0; transform: translateY(-100vh) rotate(360deg) scale(.5); }
}

/* ── RESPONSIVE ─────────────────────────────────── */
@media (max-width: 900px) {
    .page { grid-template-columns: 1fr; }
    .left-panel { display: none; }
    .right-panel { background: linear-gradient(160deg, var(--green-900) 0%, var(--green-950) 100%); }
    html, body { overflow: auto; }
}
@media (max-width: 480px) {
    .right-panel { padding: 24px 16px; align-items: flex-start; padding-top: 60px; }
    .login-card  { padding: 32px 24px; border-radius: 20px; }
}