:root {
            --gb-navy: #0d2a54;
            --gb-navy-light: #1a4a8e;
            --gb-navy-dark: #091e3d;
            --gb-gold: #ffb300;
            --gb-sky: #42a5f5;
            --gb-ocean: #01579b;
            --glass-bg: rgba(255, 255, 255, 0.97);
            --glass-border: rgba(255, 255, 255, 0.3);
            --input-bg: #f8fbff;
            --input-border: #e3f2fd;
            --text-primary: #1f2937;
            --text-secondary: #6b7280;
        }

        [data-bs-theme="dark"] {
            --glass-bg: rgba(15, 23, 42, 0.95);
            --glass-border: rgba(255, 255, 255, 0.08);
            --input-bg: rgba(30, 41, 59, 0.8);
            --input-border: rgba(66, 165, 245, 0.2);
            --text-primary: #f1f5f9;
            --text-secondary: #94a3b8;
        }

        @keyframes fadeInUp {
            from { opacity: 0; transform: translateY(30px); }
            to { opacity: 1; transform: translateY(0); }
        }
        @keyframes fadeIn {
            from { opacity: 0; }
            to { opacity: 1; }
        }
        @keyframes float {
            0%, 100% { transform: translateY(0px); }
            50% { transform: translateY(-15px); }
        }
        @keyframes wave {
            0% { transform: translateX(0) scaleY(1); }
            50% { transform: translateX(-25%) scaleY(0.8); }
            100% { transform: translateX(-50%) scaleY(1); }
        }
        @keyframes pulseGlow {
            0%, 100% { box-shadow: 0 0 20px rgba(13, 42, 84, 0.3); }
            50% { box-shadow: 0 0 40px rgba(13, 42, 84, 0.6); }
        }
        @keyframes shake {
            0%, 100% { transform: translateX(0); }
            25% { transform: translateX(-5px); }
            75% { transform: translateX(5px); }
        }
        @keyframes spin {
            to { transform: rotate(360deg); }
        }

        .animate-fade-in-up { animation: fadeInUp 0.8s ease-out forwards; }
        .animate-fade-in { animation: fadeIn 0.5s ease-out forwards; }
        .animate-float { animation: float 5s ease-in-out infinite; }
        .animate-pulse-glow { animation: pulseGlow 3s ease-in-out infinite; }
        .animate-shake { animation: shake 0.4s ease-in-out; }
        .animate-spin-slow { animation: spin 1s linear infinite; }

        * { margin: 0; padding: 0; box-sizing: border-box; }

        body {
            font-family: 'Montserrat', sans-serif;
            min-height: 100vh;
            background: linear-gradient(135deg, rgba(13, 42, 84, 0.92) 0%, rgba(9, 30, 61, 0.95) 50%, rgba(1, 87, 155, 0.92) 100%),
                        url("{{ url_for('static', filename='imagens/033c19be-3128-4050-a2eb-4b4438533e62.jpg') }}");
            background-size: cover;
            background-position: center;
            background-attachment: fixed;
            display: flex;
            align-items: center;
            justify-content: center;
            padding: 20px;
            position: relative;
            overflow-x: hidden;
            color: var(--text-primary);
            transition: color 0.3s;
        }

        [data-bs-theme="dark"] body {
            color: var(--text-primary);
        }

        @media (max-width: 768px) {
            body { background-attachment: scroll; padding: 10px; }
        }

        /* Glass card */
        .glass-card {
            background: var(--glass-bg);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border: 1px solid var(--glass-border);
            border-radius: 24px;
            box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
            transition: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
            width: 100%;
            max-width: 480px;
            position: relative;
            z-index: 10;
            overflow: hidden;
        }
        .glass-card:hover {
            transform: translateY(-6px);
            box-shadow: 0 30px 80px rgba(0, 0, 0, 0.4);
        }

        /* Header */
        .card-header-custom {
            text-align: center;
            padding: 2rem 2rem 1.5rem;
            border-bottom: 1px solid var(--glass-border);
        }
        .ship-icon {
            font-size: 3.5rem;
            color: var(--gb-navy-light);
            margin-bottom: 1rem;
            display: inline-block;
            animation: float 4s ease-in-out infinite;
        }
        [data-bs-theme="dark"] .ship-icon { color: var(--gb-sky); }
        .card-header-custom h1 {
            font-family: 'Playfair Display', serif;
            font-weight: 700;
            font-size: 2rem;
            color: var(--gb-navy);
            margin-bottom: 0.25rem;
            letter-spacing: -0.02em;
        }
        [data-bs-theme="dark"] .card-header-custom h1 { color: var(--gb-sky); }
        .card-header-custom .subtitle {
            font-weight: 600;
            font-size: 0.9rem;
            color: var(--gb-navy-light);
            text-transform: uppercase;
            letter-spacing: 0.15em;
        }
        [data-bs-theme="dark"] .card-header-custom .subtitle { color: var(--gb-sky); }
        .divider-gradient {
            width: 100px;
            height: 3px;
            background: linear-gradient(90deg, transparent, var(--gb-navy), var(--gb-sky), var(--gb-navy), transparent);
            border-radius: 2px;
            margin: 1rem auto;
        }
        .card-header-custom .tagline {
            color: var(--text-secondary);
            font-size: 0.75rem;
            text-transform: uppercase;
            letter-spacing: 0.1em;
            font-weight: 500;
        }

        /* Form body */
        .card-body-custom {
            padding: 1.5rem 2rem 2rem;
        }

        /* Floating labels - CORRIGIDO */
        .floating-group {
            position: relative;
            margin-bottom: 1.25rem;
        }
        .floating-group input {
            width: 100%;
            padding: 1.1rem 3rem 0.5rem 3rem;
            background: var(--input-bg);
            border: 2px solid var(--input-border);
            border-radius: 14px;
            color: var(--text-primary);
            font-weight: 500;
            font-size: 0.95rem;
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            outline: none;
        }
        .floating-group input:focus {
            border-color: var(--gb-navy-light);
            box-shadow: 0 0 0 4px rgba(26, 74, 142, 0.15);
            background: var(--glass-bg);
        }
        [data-bs-theme="dark"] .floating-group input:focus {
            box-shadow: 0 0 0 4px rgba(66, 165, 245, 0.15);
        }
        .floating-group input::placeholder { opacity: 0; }
        .floating-group label {
            position: absolute;
            left: 3rem;
            top: 50%;
            transform: translateY(-50%);
            color: var(--text-secondary);
            font-size: 0.9rem;
            pointer-events: none;
            transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
            background: transparent;
            padding: 0 4px;
        }
        .floating-group input:focus ~ label,
        .floating-group input:not(:placeholder-shown) ~ label,
        .floating-group input:-webkit-autofill ~ label {
            top: 0;
            left: 1rem;
            font-size: 0.7rem;
            color: var(--gb-navy-light);
            font-weight: 600;
            background: var(--glass-bg);
        }
        [data-bs-theme="dark"] .floating-group input:focus ~ label,
        [data-bs-theme="dark"] .floating-group input:not(:placeholder-shown) ~ label {
            color: var(--gb-sky);
            background: var(--glass-bg);
        }
        .input-icon-left {
            position: absolute;
            left: 1rem;
            top: 50%;
            transform: translateY(-50%);
            color: var(--gb-navy-light);
            font-size: 1.1rem;
            opacity: 0.6;
            transition: opacity 0.2s;
            pointer-events: none;
        }
        .floating-group input:focus ~ .input-icon-left { opacity: 1; }
        [data-bs-theme="dark"] .input-icon-left { color: var(--gb-sky); }

        .password-toggle {
            position: absolute;
            right: 1rem;
            top: 50%;
            transform: translateY(-50%);
            background: none;
            border: none;
            cursor: pointer;
            color: var(--text-secondary);
            padding: 0.25rem;
            display: flex;
            align-items: center;
            justify-content: center;
            transition: color 0.2s;
            z-index: 10;
            font-size: 1.1rem;
        }
        .password-toggle:hover { color: var(--gb-navy-light); }
        [data-bs-theme="dark"] .password-toggle:hover { color: var(--gb-sky); }

        /* Botão principal - estilo premium mantido */
        .btn-maritimo {
            background: linear-gradient(135deg, var(--gb-navy) 0%, var(--gb-navy-light) 50%, var(--gb-sky) 100%);
            border: none;
            color: #fff;
            font-weight: 700;
            padding: 1rem 1.5rem;
            border-radius: 14px;
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            position: relative;
            overflow: hidden;
            font-size: 1rem;
            letter-spacing: 0.02em;
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
            box-shadow: 0 4px 15px rgba(13, 42, 84, 0.3);
        }
        .btn-maritimo::before {
            content: '';
            position: absolute;
            top: 0;
            left: -100%;
            width: 100%;
            height: 100%;
            background: linear-gradient(90deg, transparent, rgba(255,255,255,0.25), transparent);
            transition: left 0.6s;
        }
        .btn-maritimo:hover::before { left: 100%; }
        .btn-maritimo:hover:not(:disabled) {
            transform: translateY(-3px);
            box-shadow: 0 15px 35px rgba(13, 42, 84, 0.4);
            color: #fff;
        }
        .btn-maritimo:active:not(:disabled) { transform: translateY(-1px); }
        .btn-maritimo:disabled {
            opacity: 0.7;
            cursor: not-allowed;
            filter: grayscale(0.3);
        }
        .btn-maritimo .spinner-border {
            width: 1.2rem;
            height: 1.2rem;
            border-width: 0.15em;
        }

        /* Botão secundário */
        .btn-register {
            background: rgba(13, 42, 84, 0.05);
            border: 1px solid rgba(13, 42, 84, 0.2);
            color: var(--gb-navy);
            font-weight: 600;
            padding: 0.75rem 1.5rem;
            border-radius: 50px;
            transition: all 0.3s;
            font-size: 0.9rem;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
            text-decoration: none;
        }
        .btn-register:hover {
            background: rgba(13, 42, 84, 0.1);
            border-color: var(--gb-navy);
            transform: translateY(-2px);
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
            color: var(--gb-navy);
        }
        [data-bs-theme="dark"] .btn-register {
            background: rgba(66, 165, 245, 0.1);
            border-color: rgba(66, 165, 245, 0.3);
            color: var(--gb-sky);
        }
        [data-bs-theme="dark"] .btn-register:hover {
            background: rgba(66, 165, 245, 0.2);
            border-color: var(--gb-sky);
        }

        /* Checkbox custom */
        .form-check-input {
            width: 1.1rem;
            height: 1.1rem;
            border: 2px solid var(--input-border);
            border-radius: 6px;
            background: var(--input-bg);
            cursor: pointer;
            transition: all 0.2s;
        }
        .form-check-input:checked {
            background-color: var(--gb-navy-light);
            border-color: var(--gb-navy-light);
        }
        [data-bs-theme="dark"] .form-check-input:checked {
            background-color: var(--gb-sky);
            border-color: var(--gb-sky);
        }
        .form-check-label {
            color: var(--text-secondary);
            font-size: 0.85rem;
            cursor: pointer;
            user-select: none;
        }

        /* Link */
        .link-custom {
            color: var(--gb-navy-light);
            font-weight: 600;
            text-decoration: none;
            font-size: 0.85rem;
            transition: all 0.2s;
        }
        .link-custom:hover {
            color: var(--gb-navy);
            text-decoration: underline;
        }
        [data-bs-theme="dark"] .link-custom { color: var(--gb-sky); }
        [data-bs-theme="dark"] .link-custom:hover { color: #7dd3fc; }

        /* Security badge */
        .security-badge {
            background: linear-gradient(135deg, #e3f2fd, #f8fbff);
            border: 1px solid #bbdefb;
            border-radius: 50px;
            padding: 0.4rem 1rem;
            font-size: 0.75rem;
            font-weight: 600;
            color: var(--gb-navy-light);
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
        }
        [data-bs-theme="dark"] .security-badge {
            background: linear-gradient(135deg, rgba(13, 42, 84, 0.2), rgba(30, 41, 59, 0.8));
            border-color: rgba(66, 165, 245, 0.3);
            color: var(--gb-sky);
        }

        /* Alertas flash - padronizados */
        .alert-flash {
            border: none;
            border-radius: 12px;
            padding: 0.75rem 1rem;
            display: flex;
            align-items: center;
            gap: 0.75rem;
            font-size: 0.85rem;
            margin-bottom: 1rem;
            animation: fadeInUp 0.4s ease-out;
        }
        .alert-flash.alert-danger-custom {
            background: linear-gradient(135deg, #fef2f2, #fee2e2);
            border-left: 4px solid #dc3545;
            color: #991b1b;
        }
        [data-bs-theme="dark"] .alert-flash.alert-danger-custom {
            background: linear-gradient(135deg, rgba(239, 68, 68, 0.15), rgba(239, 68, 68, 0.05));
            color: #fca5a5;
        }
        .alert-flash.alert-success-custom {
            background: linear-gradient(135deg, #f0fdf4, #dcfce7);
            border-left: 4px solid #198754;
            color: #166534;
        }
        [data-bs-theme="dark"] .alert-flash.alert-success-custom {
            background: linear-gradient(135deg, rgba(34, 197, 94, 0.15), rgba(34, 197, 94, 0.05));
            color: #86efac;
        }

        /* Toasts - padronizados com sistema */
        .toast-gb {
            position: fixed;
            bottom: 2rem;
            right: 2rem;
            background: var(--glass-bg);
            border: 1px solid var(--glass-border);
            border-radius: 14px;
            padding: 1rem 1.5rem;
            box-shadow: 0 8px 32px rgba(0, 0, 0, 0.15);
            display: flex;
            align-items: center;
            gap: 0.75rem;
            z-index: 1060;
            transform: translateY(100px);
            opacity: 0;
            transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
            min-width: 280px;
            backdrop-filter: blur(10px);
        }
        .toast-gb.show { transform: translateY(0); opacity: 1; }
        .toast-gb.success { border-left: 4px solid #22c55e; }
        .toast-gb.error { border-left: 4px solid #dc3545; }
        .toast-gb i { font-size: 1.25rem; }
        .toast-gb.success i { color: #22c55e; }
        .toast-gb.error i { color: #dc3545; }

        /* Modal - Bootstrap nativo estilizado */
        .modal-content-custom {
            background: var(--glass-bg);
            border: 1px solid var(--glass-border);
            border-radius: 24px;
            box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
            overflow: hidden;
            backdrop-filter: blur(20px);
        }
        .modal-header-custom {
            background: linear-gradient(135deg, var(--gb-navy), var(--gb-navy-light));
            color: white;
            padding: 1.5rem;
            text-align: center;
            border: none;
        }
        .modal-header-custom h2 {
            font-family: 'Playfair Display', serif;
            font-weight: 700;
            font-size: 1.4rem;
            margin: 0;
        }
        .modal-header-custom p { opacity: 0.8; font-size: 0.85rem; margin: 0.25rem 0 0; }
        .btn-close-custom {
            position: absolute;
            top: 1rem;
            right: 1rem;
            background: rgba(255,255,255,0.2);
            border: none;
            border-radius: 50%;
            width: 32px;
            height: 32px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
            font-size: 1.2rem;
            cursor: pointer;
            transition: all 0.2s;
            z-index: 10;
        }
        .btn-close-custom:hover { background: rgba(255,255,255,0.3); transform: scale(1.1); }

        /* Strength bar */
        .strength-bar-container {
            height: 4px;
            background: #e5e7eb;
            border-radius: 2px;
            margin-top: 0.5rem;
            overflow: hidden;
            display: none;
        }
        .strength-bar {
            height: 100%;
            width: 0;
            border-radius: 2px;
            transition: all 0.3s ease;
        }
        .strength-text {
            font-size: 0.75rem;
            margin-top: 0.25rem;
            font-weight: 500;
            display: none;
        }

        /* Cooldown overlay */
        .cooldown-overlay {
            position: absolute;
            inset: 0;
            background: rgba(255, 255, 255, 0.95);
            border-radius: 24px;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            z-index: 20;
            opacity: 0;
            pointer-events: none;
            transition: opacity 0.3s;
        }
        [data-bs-theme="dark"] .cooldown-overlay { background: rgba(15, 23, 42, 0.95); }
        .cooldown-overlay.active { opacity: 1; pointer-events: all; }

        /* Theme toggle */
        .theme-toggle {
            position: fixed;
            top: 1rem;
            right: 1rem;
            z-index: 50;
            background: var(--glass-bg);
            border: 1px solid var(--glass-border);
            border-radius: 50%;
            width: 44px;
            height: 44px;
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            transition: all 0.3s;
            backdrop-filter: blur(10px);
            font-size: 1.1rem;
            color: var(--gb-navy-light);
            box-shadow: 0 4px 12px rgba(0,0,0,0.1);
        }
        .theme-toggle:hover { transform: scale(1.1) rotate(15deg); }
        [data-bs-theme="dark"] .theme-toggle { color: var(--gb-sky); }

        /* Waves */
        .waves-container {
            position: fixed;
            bottom: 0;
            left: 0;
            width: 100%;
            height: 140px;
            overflow: hidden;
            pointer-events: none;
            z-index: 1;
        }
        .waves {
            position: absolute;
            bottom: 0;
            left: 0;
            width: 200%;
            height: 100%;
            background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1440 320"><path fill="%23ffffff" fill-opacity="0.15" d="M0,96L48,112C96,128,192,160,288,160C384,160,480,128,576,112C672,96,768,96,864,112C960,128,1056,160,1152,160C1248,160,1344,128,1392,112L1440,96L1440,320L1392,320C1344,320,1248,320,1152,320C1056,320,960,320,864,320C768,320,672,320,576,320C480,320,384,320,288,320C192,320,96,320,48,320L0,320Z"></path></svg>');
            background-size: 50% 100%;
            animation: wave 12s linear infinite;
        }
        .waves-2 {
            position: absolute;
            bottom: 0;
            left: 0;
            width: 200%;
            height: 100%;
            background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1440 320"><path fill="%2342a5f5" fill-opacity="0.08" d="M0,192L48,197.3C96,203,192,213,288,229.3C384,245,480,267,576,250.7C672,235,768,181,864,181.3C960,181,1056,235,1152,234.7C1248,235,1344,181,1392,154.7L1440,128L1440,320L1392,320C1344,320,1248,320,1152,320C1056,320,960,320,864,320C768,320,672,320,576,320C480,320,384,320,288,320C192,320,96,320,48,320L0,320Z"></path></svg>');
            background-size: 50% 100%;
            animation: wave 18s linear infinite reverse;
        }

        /* Deco icons */
        .deco-icon {
            position: fixed;
            font-size: 2.5rem;
            opacity: 0.12;
            pointer-events: none;
            z-index: 1;
            filter: drop-shadow(0 2px 4px rgba(0,0,0,0.2));
        }

        @media (max-width: 768px) {
            .deco-icon { display: none; }
            .glass-card { border-radius: 20px; }
            .card-header-custom { padding: 1.5rem 1.25rem 1rem; }
            .card-header-custom h1 { font-size: 1.6rem; }
            .card-body-custom { padding: 1.25rem; }
            .toast-gb { right: 1rem; left: 1rem; bottom: 1rem; min-width: auto; }
        }

        @media (prefers-reduced-motion: reduce) {
            *, *::before, *::after {
                animation-duration: 0.01ms !important;
                animation-iteration-count: 1 !important;
                transition-duration: 0.01ms !important;
            }
            .waves, .waves-2 { animation: none; }
        }