@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@400;500;700;800&display=swap');

:root {
    --bg-light: #f9fafb;
    --card-bg: #ffffff;
    --primary-orange: #ff6a00;
    --orange-glow: rgba(255, 106, 0, 0.15);
    --text-black: #111111;
    --text-muted: #6b7280;
    --border-color: #e5e7eb;
    --shadow-soft: 0 10px 25px rgba(0, 0, 0, 0.03);
}

* { margin: 0; padding: 0; box-sizing: border-box; font-family: 'Plus Jakarta Sans', sans-serif; }

body { background-color: var(--bg-light); color: var(--text-black); background-image: radial-gradient(#d1d5db 1px, transparent 1px); background-size: 24px 24px; -webkit-font-smoothing: antialiased; }

/* Animations */
.animate-slide-up { animation: slideUpFade 0.6s cubic-bezier(0.16, 1, 0.3, 1) backwards; }
.delay-1 { animation-delay: 0.1s; } .delay-2 { animation-delay: 0.2s; } .delay-3 { animation-delay: 0.3s; }
@keyframes slideUpFade { 0% { opacity: 0; transform: translateY(25px); } 100% { opacity: 1; transform: translateY(0); } }

/* Utils */
.text-orange { color: var(--primary-orange); } .text-black { color: var(--text-black); }
.font-bold { font-weight: 800; } .font-semibold { font-weight: 600; }
.w-100 { width: 100%; } 
.flex-row { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }
.flex-between { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 10px; }
.mt-15 { margin-top: 15px; } .mt-10 { margin-top: 10px; } .mb-10 { margin-bottom: 10px; }

/* Desktop Navigation */
.glass-nav { display: flex; justify-content: space-between; align-items: center; padding: 15px 5%; background: rgba(255, 255, 255, 0.95); backdrop-filter: blur(10px); border-bottom: 2px solid var(--border-color); position: sticky; top: 0; z-index: 100; box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05); }
.nav-logo { font-size: 1.8rem; font-weight: 800; letter-spacing: -0.5px; }
.nav-menu { display: flex; align-items: center; justify-content: space-between; flex-grow: 1; margin-left: 30px; transition: 0.4s ease; }
.nav-links { display: flex; gap: 8px; flex-wrap: wrap; }
.nav-btn { background: transparent; border: none; color: var(--text-muted); font-size: 0.95rem; font-weight: 700; cursor: pointer; transition: 0.3s; padding: 10px 15px; border-radius: 10px; }
.nav-btn:hover, .nav-btn.active { color: var(--text-black); background: #f3f4f6; }
.nav-btn.active i { color: var(--primary-orange); }

/* Buttons & Login Button specific styles */
.btn-primary { background: var(--text-black); color: #fff; border: none; padding: 16px 20px; border-radius: 12px; font-weight: 800; font-size: 1.05rem; cursor: pointer; transition: 0.3s; }
.btn-primary:hover { background: var(--primary-orange); box-shadow: 0 8px 20px var(--orange-glow); }
.btn-black { background: var(--text-black); color: #fff; border: none; padding: 10px 18px; border-radius: 10px; font-weight: 700; font-size: 0.95rem; cursor: pointer; transition: 0.3s; display: flex; align-items: center; justify-content: center; gap: 8px; }
.btn-black:hover { background: var(--primary-orange); }
.btn-delete { background: #fee2e2; color: #dc2626; border: none; padding: 10px 18px; font-weight: 700; font-size: 0.95rem; border-radius: 10px; cursor: pointer; transition: 0.2s;}
.btn-delete:hover { background: #dc2626; color: white; }
.btn-outline { background: transparent; border: 2px solid var(--border-color); color: var(--text-black); padding: 10px 20px; border-radius: 10px; font-weight: 800; cursor: pointer; transition: 0.3s; }
.btn-outline:hover { border-color: var(--primary-orange); color: var(--primary-orange); background: #fffaf5; }
.btn-edit-small { background: #f3f4f6; color: var(--text-black); border: none; padding: 6px 10px; border-radius: 8px; cursor: pointer; font-size: 0.8rem; font-weight: 700; transition: 0.2s; }
.btn-edit-small:hover { background: var(--primary-orange); color: white; }

#auth-btn { min-width: 110px; } 

/* Header Meal Badge */
.meal-badge { background: #fffaf5; border: 1px solid #ffedd5; color: var(--primary-orange); font-weight: 800; font-size: 1rem; padding: 10px 20px; border-radius: 30px; cursor: pointer; transition: 0.3s; display: flex; align-items: center; justify-content: center; gap: 8px; box-shadow: 0 4px 10px rgba(255,106,0,0.1); }
.meal-badge:hover { background: var(--primary-orange); color: white; transform: translateY(-2px); }

/* Mobile Hamburger Menu Logic */
.hamburger-btn { display: none; background: none; border: none; font-size: 1.8rem; color: var(--text-black); cursor: pointer; padding: 5px 15px; border-radius: 8px; transition: 0.2s; z-index: 1005; }
.hamburger-btn i { pointer-events: none; } 

/* =======================================================
   Mobile Adjustments - FIXED LAYOUT & STACKING ORDER
   ======================================================= */
@media (max-width: 850px) {
    .glass-nav { position: relative; z-index: 999; flex-direction: row; justify-content: space-between; align-items: center;}
    .hamburger-btn { display: block; }
    .nav-menu { 
        position: absolute; top: 100%; left: 0; width: 100%; background: rgba(255, 255, 255, 0.98); backdrop-filter: blur(15px);
        flex-direction: column; align-items: flex-start; padding: 20px 5%; margin-left: 0;
        box-shadow: 0 15px 30px rgba(0,0,0,0.15); 
        transform: translateY(-120%); opacity: 0; visibility: hidden; 
        border-bottom: 3px solid var(--primary-orange); border-bottom-left-radius: 20px; border-bottom-right-radius: 20px;
        transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
        z-index: -1; 
    }
    .nav-menu.active { transform: translateY(0); opacity: 1; visibility: visible; }
    .nav-links { flex-direction: column; width: 100%; gap: 10px; margin-bottom: 20px; }
    .nav-btn { width: 100%; text-align: left; padding: 16px 20px; font-size: 1.1rem; border: 1px solid var(--border-color); }
    .mobile-nav-actions { width: 100%; flex-direction: column; gap: 15px; }
    .meal-badge, #auth-btn { width: 100%; justify-content: center; padding: 14px 20px !important; font-size: 1.1rem !important; border-radius: 12px !important;}
    
    /* Force Grid to 1 Column for Mobile (prevents side-by-side) */
    .main-grid { 
        display: grid !important; 
        grid-template-columns: 1fr !important; 
        gap: 30px !important; 
    } 
    
    /* Date & Time fields should stack nicely on mobile */
    .datetime-grid {
        grid-template-columns: 1fr !important;
    }

    /* Ensure Right Panel flows downwards */
    .right-panel { 
        display: flex !important; 
        flex-direction: column !important; 
        gap: 30px !important;
    }
    
    /* This pushes the Segments block to the top of the right panel */
    #segments-card-container { 
        order: -1 !important; 
    }
    
    /* This keeps the Chart below the Segments block */
    #chart-card-container { 
        order: 2 !important; 
    }

    .flex-between { flex-direction: column; align-items: flex-start; width: 100%; }
    .auth-card { padding: 30px 20px !important; }
}

/* Layout */
.app-container { max-width: 1100px; margin: 40px auto; padding: 0 20px; min-height: 70vh; }
.main-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 30px; }
.right-panel { display: flex; flex-direction: column; gap: 30px; }

/* Pages & Cards */
.page { display: none; } .active-page { display: block; }
.card { background: var(--card-bg); border: 1px solid var(--border-color); border-radius: 20px; padding: 30px; box-shadow: var(--shadow-soft); transition: transform 0.3s ease; }
.card:hover { transform: translateY(-3px); box-shadow: 0 15px 35px rgba(0,0,0,0.05); }
.bg-orange-light { background: #fffaf5; border-color: #ffedd5; }
.card-title { margin-bottom: 20px; font-size: 1.3rem; font-weight: 800; border-bottom: 2px solid var(--border-color); padding-bottom: 12px; width: 100%; }
.dashboard-header { display: flex; justify-content: space-between; align-items: center; border-left: 5px solid var(--primary-orange); margin-bottom: 30px; }

/* Forms & Inputs */
.form-group { margin-bottom: 20px; width: 100%; }
.form-group label { display: block; margin-bottom: 8px; font-size: 0.9rem; font-weight: 700; }
.modern-input { width: 100%; padding: 14px 15px; border-radius: 12px; background: #fdfdfd; border: 2px solid var(--border-color); color: var(--text-black); outline: none; transition: 0.3s; font-size: 1rem; font-weight: 500; }
.modern-input:focus { border-color: var(--primary-orange); background: #fff; box-shadow: 0 0 0 4px var(--orange-glow); }

/* Date & Time Grid Base */
.datetime-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }

.input-with-icon { position: relative; }
.currency-icon { position: absolute; left: 16px; top: 50%; transform: translateY(-50%); font-weight: 800; font-size: 1.1rem; }
.pl-40 { padding-left: 45px; }

/* Segments */
.segment-list { max-height: 200px; overflow-y: auto; display: flex; flex-direction: column; gap: 10px; padding-right: 5px; }
.segment-item { display: flex; justify-content: space-between; align-items: center; background: #fff; padding: 12px 16px; border-radius: 10px; border: 1px solid var(--border-color); font-weight: 600; }

/* Timelines & Archives */
.segment-summary-box { text-align: center; margin: 25px 0; padding: 35px; background: #fff; border-radius: 16px; border: 2px dashed #d1d5db; width: 100%; }
.segment-summary-box h1 { font-size: 2.8rem; margin-top: 10px; letter-spacing: -1px; }
.timeline { border-left: 3px solid var(--border-color); margin-left: 10px; padding-left: 25px; position: relative; width: 100%; }
.timeline-item { position: relative; margin-bottom: 25px; background: #fff; border: 1px solid var(--border-color); padding: 18px; border-radius: 14px; width: 100%; }
.timeline-item::before { content: ''; position: absolute; left: -35px; top: 22px; width: 14px; height: 14px; background: var(--primary-orange); border-radius: 50%; border: 4px solid #fff; box-shadow: 0 0 0 1px var(--border-color); }
.timeline-date { font-size: 0.85rem; color: var(--text-muted); font-weight: 700; margin-bottom: 8px; }
.timeline-amount { font-size: 1.4rem; font-weight: 800; color: var(--text-black); }
.archive-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 15px; width: 100%; }
.archive-card { background: #fff; border: 1px solid var(--border-color); padding: 25px; border-radius: 14px; text-align: center; box-shadow: var(--shadow-soft); }
.archive-card strong { font-size: 1.6rem; color: var(--primary-orange); font-weight: 800; display: block; margin-top: 5px; }

/* PREMIUM AUTH MODAL & OVERLAY */
.modal-overlay { position: fixed; top: 0; left: 0; width: 100%; height: 100%; background: rgba(0,0,0,0.6); backdrop-filter: blur(8px); z-index: 2000; display: none; justify-content: center; align-items: center; padding: 20px; }
.modal-overlay.show { display: flex; animation: fadeIn 0.3s; }
.modal-content { width: 100%; max-width: 500px; background: #fff; max-height: 90vh; display: flex; flex-direction: column; }
.btn-close { background: none; border: none; font-size: 1.5rem; cursor: pointer; color: var(--text-muted); transition: 0.2s;}
.btn-close:hover { color: #dc2626; transform: scale(1.1); }

/* Beautiful Auth Card */
.auth-card { background: #fff; padding: 45px 35px; border-radius: 24px; text-align: center; position: relative; max-width: 420px; width: 100%; box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25); border: 1px solid var(--border-color); }
.auth-card h2 { font-size: 1.8rem; font-weight: 800; margin-bottom: 12px; color: var(--text-black); }
.auth-card p { color: var(--text-muted); margin-bottom: 30px; font-size: 0.95rem; line-height: 1.5; }
.google-btn { display: flex; align-items: center; justify-content: center; gap: 12px; width: 100%; padding: 15px; border: 2px solid var(--border-color); border-radius: 14px; background: #fff; font-weight: 800; font-size: 1.05rem; cursor: pointer; transition: 0.3s; color: var(--text-black); box-shadow: 0 4px 10px rgba(0,0,0,0.03); }
.google-btn:hover { background: #f9fafb; border-color: var(--primary-orange); box-shadow: 0 8px 20px var(--orange-glow); transform: translateY(-2px); }
.google-btn img { width: 24px; }

/* Meal Specific UI */
.meal-controls { background: #f9fafb; padding: 20px; border-radius: 12px; border: 1px solid var(--border-color); width: 100%; }
.meal-history-list::-webkit-scrollbar { width: 6px; }
.meal-history-list::-webkit-scrollbar-thumb { background: #ccc; border-radius: 4px; }
.meal-log-item { background: #fff; border: 1px solid var(--border-color); padding: 12px 15px; border-radius: 10px; display: flex; justify-content: space-between; align-items: center; margin-bottom: 8px; transition: 0.2s; width: 100%;}
.meal-log-item:hover { border-color: var(--primary-orange); }
.btn-edit-meal { background: transparent; border: 1px solid var(--border-color); color: var(--text-black); padding: 6px 12px; border-radius: 6px; font-size: 0.85rem; font-weight: 700; cursor: pointer; transition: 0.2s; }
.btn-edit-meal:hover { border-color: var(--primary-orange); color: var(--primary-orange); background: #fffaf5; }

@keyframes fadeIn { from { opacity: 0; transform: scale(0.95); } to { opacity: 1; transform: scale(1); } }
footer { text-align: center; padding: 40px; font-size: 1rem; border-top: 1px solid var(--border-color); margin-top: 50px;}