@import url('https://fonts.googleapis.com/css2?family=Instrument+Serif&family=Inter:wght@400;500;600;700;800;900&display=swap');

:root {
    color-scheme: dark;
    --bg:               #0a0a0a;
    --bg-card:          rgba(255,255,255,0.04);
    --bg-elevated:      rgba(255,255,255,0.06);
    --text:             #ffffff;
    --text-muted:       #a3a3a3;
    --text-dim:         #888888;
    --border:           rgba(255,255,255,0.08);
    --border-strong:    rgba(255,255,255,0.12);

    --accent-from:      #ff6b35;
    --accent-to:        #ff3d6e;
    --gold:             #ffb800;
    --success:          #5eead4;
    --purple:           #a78bfa;
    --urgent:           #ff3d6e;

    --cat-elec:         #ffb800;
    --cat-gas:          #ff8a5c;
    --cat-water:        #5eead4;
    --cat-net:          #a78bfa;

    --font-sans:        'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-serif:       'Instrument Serif', serif;

    --max-width:        420px;
    --radius-sm:        8px;
    --radius:           14px;
    --radius-lg:        20px;
    --radius-xl:        22px;
    --radius-pill:      100px;

    --shadow-glow:      0 14px 40px rgba(255,61,110,0.3);
    --shadow-nav:       0 20px 50px rgba(0,0,0,0.4);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    -webkit-tap-highlight-color: transparent;
}

html {
    -webkit-text-size-adjust: 100%;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-sans);
    font-size: 14px;
    line-height: 1.5;
    background: var(--bg);
    color: var(--text);
    max-width: var(--max-width);
    margin: 0 auto;
    min-height: 100vh;
    padding-bottom: 110px;
    overflow-x: hidden;
    position: relative;
}

a {
    color: inherit;
    text-decoration: none;
}

button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    background: none;
    color: inherit;
}

input, textarea, select {
    font-family: inherit;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

.accent-text {
    background: linear-gradient(135deg, var(--accent-from), var(--gold));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.accent-text-alt {
    background: linear-gradient(135deg, var(--success), var(--purple));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

body::before,
body::after {
    content: '';
    position: fixed;
    width: 600px;
    height: 600px;
    filter: blur(60px);
    z-index: 0;
    pointer-events: none;
}

body::before {
    top: -15%;
    left: -30%;
    background: radial-gradient(circle, rgba(255,107,53,0.38) 0%, transparent 60%);
    animation: float1 14s ease-in-out infinite;
}

body::after {
    bottom: 5%;
    right: -30%;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(94,234,212,0.28) 0%, transparent 60%);
    animation: float2 16s ease-in-out infinite;
}

@keyframes float1 {
    0%, 100% { transform: translate(0, 0) scale(1); }
    50%      { transform: translate(40px, 60px) scale(1.1); }
}

@keyframes float2 {
    0%, 100% { transform: translate(0, 0) scale(1); }
    50%      { transform: translate(-30px, -40px) scale(1.15); }
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50%      { opacity: 0.4; }
}

.wrap {
    position: relative;
    z-index: 1;
}

.topbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 20px 14px;
    position: sticky;
    top: 0;
    z-index: 50;
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
    background: rgba(10,10,10,0.7);
    border-bottom: 1px solid var(--border);
}

.icon-btn {
    width: 40px;
    height: 40px;
    border-radius: 12px;
    background: var(--bg-elevated);
    border: 1px solid var(--border);
    color: var(--text);
    display: grid;
    place-items: center;
    transition: background 0.2s;
}
.icon-btn:active {
    background: var(--border);
}
.icon-btn svg {
    width: 18px;
    height: 18px;
}

.back-btn,
.menu-btn {
    width: 40px;
    height: 40px;
    border-radius: 12px;
    background: var(--bg-elevated);
    border: 1px solid var(--border);
    color: var(--text);
    display: grid;
    place-items: center;
    transition: background 0.2s;
}
.back-btn:active,
.menu-btn:active {
    background: var(--border);
}
.back-btn svg,
.menu-btn svg {
    width: 18px;
    height: 18px;
}

.home-btn {
    width: 40px;
    height: 40px;
    border-radius: 12px;
    background: rgba(255,107,53,0.12);
    border: 1px solid rgba(255,107,53,0.25);
    color: var(--accent-from);
    display: grid;
    place-items: center;
    transition: background 0.2s, transform 0.15s;
}
.home-btn:active {
    background: rgba(255,107,53,0.22);
    transform: scale(0.94);
}
.home-btn svg {
    width: 18px;
    height: 18px;
}

.topbar .page-title {
    font-size: 16px;
    font-weight: 700;
    letter-spacing: -0.4px;
    flex: 1;
    text-align: center;
}

.logo {
    font-size: 22px;
    font-weight: 800;
    letter-spacing: -0.8px;
    display: flex;
    align-items: center;
    gap: 9px;
    color: var(--text);
}
.logo-dot {
    width: 11px;
    height: 11px;
    background: linear-gradient(135deg, var(--accent-from), var(--gold));
    border-radius: 50%;
    box-shadow: 0 0 20px rgba(255,107,53,0.7);
}

.top-actions {
    display: flex;
    gap: 8px;
    align-items: center;
}

.top-streak {
    display: flex;
    align-items: center;
    gap: 5px;
    padding: 7px 11px;
    background: rgba(255,184,0,0.12);
    border: 1px solid rgba(255,184,0,0.2);
    border-radius: var(--radius-pill);
    font-size: 12px;
    font-weight: 600;
    color: var(--gold);
}
.top-streak svg {
    width: 13px;
    height: 13px;
}

.live-pulse {
    width: 6px;
    height: 6px;
    background: var(--success);
    border-radius: 50%;
    box-shadow: 0 0 10px var(--success);
    animation: pulse 1.6s ease-in-out infinite;
    flex-shrink: 0;
}

.flash-container {
    padding: 12px 22px 0;
}

.flash {
    padding: 12px 16px;
    border-radius: var(--radius);
    margin-bottom: 10px;
    font-size: 13px;
    font-weight: 500;
    backdrop-filter: blur(10px);
    border: 1px solid;
    display: flex;
    align-items: flex-start;
    gap: 10px;
    line-height: 1.5;
}
.flash-icon {
    flex-shrink: 0;
    width: 16px;
    height: 16px;
    margin-top: 1px;
}
.flash.flash-success {
    background: rgba(94,234,212,0.12);
    border-color: rgba(94,234,212,0.3);
    color: var(--success);
}
.flash.flash-error {
    background: rgba(255,61,110,0.12);
    border-color: rgba(255,61,110,0.3);
    color: var(--urgent);
}
.flash.flash-warning {
    background: rgba(255,184,0,0.12);
    border-color: rgba(255,184,0,0.2);
    color: var(--gold);
}
.flash.flash-info {
    background: rgba(167,139,250,0.12);
    border-color: rgba(167,139,250,0.3);
    color: var(--purple);
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 12px 20px;
    border-radius: var(--radius-pill);
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.15s, opacity 0.2s;
    text-align: center;
    border: none;
    font-family: inherit;
    white-space: nowrap;
}
.btn:active {
    transform: scale(0.96);
}
.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent-from), var(--accent-to));
    color: #fff;
    box-shadow: var(--shadow-glow);
}

.btn-white {
    background: #fff;
    color: var(--bg);
}

.btn-secondary {
    background: var(--bg-elevated);
    color: var(--text);
    border: 1px solid var(--border);
}

.btn-ghost {
    background: transparent;
    color: var(--text);
}

.btn-block {
    width: 100%;
}

.btn-sm {
    padding: 8px 14px;
    font-size: 12px;
}

.card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 18px;
    backdrop-filter: blur(10px);
}

.tag {
    font-size: 10px;
    font-weight: 600;
    padding: 4px 9px;
    border-radius: 6px;
    letter-spacing: 0.3px;
    text-transform: uppercase;
    display: inline-flex;
    align-items: center;
    gap: 3px;
}
.tag.elec    { background: rgba(255,184,0,0.15);  color: var(--cat-elec); }
.tag.gas     { background: rgba(255,107,53,0.15); color: var(--cat-gas); }
.tag.water   { background: rgba(94,234,212,0.15); color: var(--cat-water); }
.tag.net     { background: rgba(167,139,250,0.15); color: var(--cat-net); }
.tag.verified{ background: rgba(94,234,212,0.12); color: var(--success); }
.tag.urgent  { background: rgba(255,61,110,0.15); color: var(--urgent); }
.tag.urgent::before {
    content: '';
    width: 5px;
    height: 5px;
    background: var(--urgent);
    border-radius: 50%;
    animation: pulse 1.6s ease-in-out infinite;
}

.form-group {
    margin-bottom: 16px;
}
.form-label {
    display: block;
    font-size: 12px;
    font-weight: 600;
    color: var(--text-muted);
    margin-bottom: 6px;
    letter-spacing: 0.3px;
}
.form-input,
.form-textarea,
.form-select {
    width: 100%;
    padding: 14px 16px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    color: var(--text);
    font-size: 15px;
    font-family: inherit;
    transition: border-color 0.2s, background 0.2s;
}
.form-input:focus,
.form-textarea:focus,
.form-select:focus {
    outline: none;
    border-color: var(--success);
    background: var(--bg-elevated);
}
.form-input::placeholder,
.form-textarea::placeholder {
    color: var(--text-dim);
}
.form-textarea {
    resize: vertical;
    min-height: 80px;
    line-height: 1.5;
}
.form-help {
    font-size: 11px;
    color: var(--text-dim);
    margin-top: 6px;
}
.form-error {
    font-size: 12px;
    color: var(--urgent);
    margin-top: 6px;
}

.form-select {
    appearance: none;
    -webkit-appearance: none;
    -moz-appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%23888888' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 14px center;
    padding-right: 42px;
}
.form-select option {
    background: #1a1a1a;
    color: var(--text);
}
.form-select option[value=""] {
    color: var(--text-dim);
}

.nav {
    position: fixed;
    bottom: 16px;
    left: 50%;
    transform: translateX(-50%);
    width: calc(100% - 32px);
    max-width: 388px;
    background: rgba(20,20,20,0.85);
    backdrop-filter: blur(30px);
    -webkit-backdrop-filter: blur(30px);
    border: 1px solid var(--border);
    border-radius: 24px;
    padding: 10px;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 4px;
    z-index: 100;
    box-shadow: var(--shadow-nav);
}

.nav-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
    padding: 8px 4px;
    border-radius: 16px;
    font-size: 10px;
    color: var(--text-dim);
    font-weight: 500;
    transition: background 0.2s, color 0.2s;
    text-decoration: none;
}
.nav-item.active {
    background: rgba(255,255,255,0.08);
    color: var(--text);
}
.nav-item svg {
    width: 20px;
    height: 20px;
}

.menu-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.6);
    backdrop-filter: blur(8px);
    z-index: 200;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.25s, visibility 0.25s;
}
.menu-overlay.open {
    opacity: 1;
    visibility: visible;
}

.menu-drawer {
    position: fixed;
    top: 0;
    right: 0;
    height: 100vh;
    width: 80%;
    max-width: 320px;
    background: #131313;
    border-left: 1px solid var(--border);
    z-index: 201;
    transform: translateX(100%);
    transition: transform 0.3s ease;
    overflow-y: auto;
    padding: 18px 16px;
    display: flex;
    flex-direction: column;
    gap: 2px;
    will-change: transform;
}
.menu-drawer.open {
    transform: translateX(0);
}

.menu-head {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 12px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--border);
}
.menu-close {
    width: 36px;
    height: 36px;
    border-radius: 10px;
    background: var(--bg-elevated);
    border: 1px solid var(--border);
    color: var(--text);
    display: grid;
    place-items: center;
}

.menu-user {
    padding: 14px 12px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    margin-bottom: 8px;
    display: flex;
    align-items: center;
    gap: 12px;
}
.menu-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--accent-from), var(--accent-to));
    display: grid;
    place-items: center;
    font-weight: 700;
    color: #fff;
    flex-shrink: 0;
}
.menu-user-info {
    flex: 1;
    min-width: 0;
}
.menu-user-name {
    font-size: 14px;
    font-weight: 600;
    color: var(--text);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.menu-user-role {
    font-size: 11px;
    color: var(--text-dim);
}

.menu-section {
    font-size: 10px;
    font-weight: 600;
    color: var(--text-dim);
    text-transform: uppercase;
    letter-spacing: 1px;
    padding: 10px 8px 4px;
}

.menu-link {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 9px 12px;
    border-radius: var(--radius);
    font-size: 14px;
    color: var(--text);
    font-weight: 500;
    transition: background 0.15s;
}
.menu-link:active,
.menu-link:hover {
    background: var(--bg-elevated);
}
.menu-link svg {
    width: 18px;
    height: 18px;
    color: var(--text-muted);
    flex-shrink: 0;
}
.menu-link.danger,
.menu-link.danger svg {
    color: var(--urgent);
}
.menu-link.active {
    background: var(--bg-elevated);
    box-shadow: inset 3px 0 0 var(--accent-from);
    color: var(--text);
    font-weight: 600;
}
.menu-link.active svg {
    color: var(--accent-from);
}

body.menu-open .nav {
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: opacity 0.2s, visibility 0.2s;
}

.minimal-footer {
    text-align: center;
    padding: 20px 22px 4px;
    font-size: 11px;
    color: var(--text-dim);
    line-height: 1.8;
}
.minimal-footer a {
    color: var(--text-muted);
    transition: color 0.2s;
}
.minimal-footer a:hover {
    color: var(--text);
}
.minimal-footer .sep {
    margin: 0 6px;
    opacity: 0.5;
}

.text-muted    { color: var(--text-muted); }
.text-dim      { color: var(--text-dim); }
.text-success  { color: var(--success); }
.text-urgent   { color: var(--urgent); }
.text-center   { text-align: center; }
.tabular       { font-variant-numeric: tabular-nums; }
.mt-1          { margin-top: 8px; }
.mt-2          { margin-top: 16px; }
.mt-3          { margin-top: 24px; }
.mb-1          { margin-bottom: 8px; }
.mb-2          { margin-bottom: 16px; }
.mb-3          { margin-bottom: 24px; }
.hidden        { display: none !important; }

.no-scrollbar {
    scrollbar-width: none;
}
.no-scrollbar::-webkit-scrollbar {
    display: none;
}

@media (max-width: 600px) {
    body::before,
    body::after {
        animation: none;
        filter: blur(40px);
        opacity: 0.5;
    }

    .topbar {
        backdrop-filter: none;
        -webkit-backdrop-filter: none;
        background: rgba(10,10,10,0.96);
    }

    .nav {
        backdrop-filter: none;
        -webkit-backdrop-filter: none;
        background: rgba(20,20,20,0.97);
    }

    .menu-overlay {
        backdrop-filter: none;
        -webkit-backdrop-filter: none;
        background: rgba(0,0,0,0.7);
    }

    .flash,
    .card {
        backdrop-filter: none;
        -webkit-backdrop-filter: none;
    }
}