app.py

# -*- coding: utf-8 -*-
from typing import Optional, Dict, Any
import base64, mimetypes
from html import escape
from pathlib import Path
import streamlit as st

# ========= PATHS =========
BASE_DIR = Path(__file__).parent
ASSETS   = BASE_DIR / "assets"

# ========= META =========
st.set_page_config(page_title="Smart Thinking — AI Suite", layout="wide")

# ========= GLOBAL THEME (all knobs live here) =========
THEME: Dict[str, Any] = {
    "page": {
        "container_width": 1120,
        "bg_radial": True,
        "section_gap": 44,
        "footer_gap": 36,
        "top_padding": 40,
    },
    "hero": {
        "logo": ASSETS / "logo.png",
        "width": 340,
        "tagline": "We Deliver AI-Based Solutions For O&G Industry",
        "tagline_size": 22,
        "tagline_weight": 500,      # lighter than bold
        "tagline_italic": True,     # italic tagline
        "tagline_color": "#0B1220",
        "logo_bottom": 14,
        "block_bottom": 22,
    },
    "grid": {
        "columns": 2,
        "gap": 60,
        "card_width": 400,
    },
    "card": {
        "radius": 22,
        "border_width": 2,
        "border": "#0B1220",
        "border_hover": "#243447",
        "bg_top":  "#FFFFFF",
        "bg_bot":  "#FBFCFE",
        "pad_v": 24,
        "pad_h": 22,
        "gap": 12,                 # base gap between stacked elements

        # Title & paragraph (FULL CONTROL)
        "title_color": "#0B1220",
        "title_size": 26,
        "title_weight": 900,
        "title_mt": 0,             # space above title
        "title_mb": 0,             # space below title
        "blurb_color": "#566275",
        "blurb_size": 16,
        "blurb_mt": 0,             # space above blurb
        "blurb_mb": 40,             # space below blurb

        # Card logo controls (no frame/border)
        "logo_max_w": 350,
        "logo_area_h": 300,        # fixed area so top spacing is identical across cards
        "logo_top": 6,
        "logo_bottom": 0,
    },
    "button": {
        "pad_v": 12, "pad_h": 20, "radius": 14,
        "bg1": "#0B1220", "bg2": "#162338",
        "text": "#FFFFFF", "border": "rgba(11,18,32,.55)",
        "font_size": 16, "font_weight": 800,
        "btn_mt": 8,               # space above the button
    },
}

# ========= CARDS =========
CARDS = [
    {
        "title": "\u00A0Geomechanics",
        "blurb": "Predict Rock Mechanical Behaviour Using AI",
        "url":   "https://smart-thinking-ai-suite-geomech.hf.space",
        "icon":  ASSETS / "GeoMech_logo.png",
        "style": {
            "bg_top":  "#EEF7FF",
            "bg_bot":  "#F7FBFF",
            "border":  "#0E4A6E",
        },
    },
    {
        "title": "\u00A0Well Logging",
        "blurb": "Generate Synthetic Logging Profiles Using AI",
        "url":   "https://smart-thinking-ai-suite-log.hf.space",
        "icon":  ASSETS / "log_logo.png",
        "style": {
            "bg_top":  "#F8FFF4",
            "bg_bot":  "#FBFFF8",
            "border":  "#0F3D3E",
        },
    },
]

# ========= Helpers =========
def data_uri(path: Path) -> Optional[str]:
    if not path or not path.exists(): return None
    mime, _ = mimetypes.guess_type(path.name)
    if not mime: mime = "image/png"
    b64 = base64.b64encode(path.read_bytes()).decode("utf-8")
    return f"data:{mime};base64,{b64}"

def img_tag(path: Path, alt: str, cls: str = "", style: str = "") -> str:
    uri = data_uri(path)
    if not uri: return ""
    cls_attr = f' class="{cls}"' if cls else ""
    style_attr = f' style="{style}"' if style else ""
    return f'<img{cls_attr}{style_attr} src="{uri}" alt="{escape(alt)}" />'

# ========= CSS =========
page = THEME["page"]; hero = THEME["hero"]
grid = THEME["grid"]; card = THEME["card"]; button = THEME["button"]

bg_radial_css = """
background:
  radial-gradient(980px 460px at 50% -140px,
    rgba(2,12,30,0.06) 0%,
    rgba(2,12,30,0.04) 28%,
    rgba(255,255,255,0.98) 60%,
    rgba(255,255,255,1) 100%);
""" if page["bg_radial"] else "background: #fff;"

st.markdown(f"""
<style>
  :root {{
    --container-w: {page["container_width"]}px;
    --top-pad: {page["top_padding"]}px;
    --section-gap: {page["section_gap"]}px;
    --footer-gap: {page["footer_gap"]}px;

    --hero-w: {hero["width"]}px;
    --hero-logo-mb: {hero["logo_bottom"]}px;
    --hero-block-mb: {hero["block_bottom"]}px;
    --hero-tag-fs: {hero["tagline_size"]}px;
    --hero-tag-weight: {hero["tagline_weight"]};
    --hero-tag-style: {"italic" if hero.get("tagline_italic", True) else "normal"};
    --hero-tag-color: {hero["tagline_color"]};

    --grid-gap: {grid["gap"]}px;
    --grid-cols: {grid["columns"]};
    --card-w: {grid["card_width"]}px;

    --card-r: {card["radius"]}px;
    --card-bw: {card["border_width"]}px;
    --card-border: {card["border"]};
    --card-border-hover: {card["border_hover"]};
    --card-bg-top: {card["bg_top"]};
    --card-bg-bot: {card["bg_bot"]};
    --card-pv: {card["pad_v"]}px;
    --card-ph: {card["pad_h"]}px;
    --card-gap: {card["gap"]}px;

    --card-title-color: {card["title_color"]};
    --card-title-size: {card["title_size"]}px;
    --card-title-weight: {card["title_weight"]};
    --card-title-mt: {card["title_mt"]}px;
    --card-title-mb: {card["title_mb"]}px;

    --card-blurb-color: {card["blurb_color"]};
    --card-blurb-size: {card["blurb_size"]}px;
    --card-blurb-mt: {card["blurb_mt"]}px;
    --card-blurb-bm: {card["blurb_mb"]}px;

    --logo-max-w: {card["logo_max_w"]}px;
    --logo-area-h: {card["logo_area_h"]}px;     /* fixed logo area height */
    --logo-top: {card["logo_top"]}px;
    --logo-bottom: {card["logo_bottom"]}px;

    --btn1: {button["bg1"]};
    --btn2: {button["bg2"]};
    --btnText: {button["text"]};
    --btnBorder: {button["border"]};
    --btnFS: {button["font_size"]}px;
    --btnFW: {button["font_weight"]};
    --btnPV: {button["pad_v"]}px;
    --btnPH: {button["pad_h"]}px;
    --btnRadius: {button["radius"]}px;
    --btnMT: {button["btn_mt"]}px;
  }}

  html, body, [data-testid="stAppViewContainer"] {{ height: 100%; }}
  [data-testid="stAppViewContainer"] > .main {{ padding-top: 0 !important; padding-bottom: 0 !important; }}

  .block-container {{
    max-width: var(--container-w);
    min-height: 100vh;
    display: flex; flex-direction: column;
    gap: var(--section-gap);
    padding: var(--top-pad) 0 var(--footer-gap) !important;
    {bg_radial_css}
  }}

  /* ===== HERO ===== */
  .hero {{ text-align:center; }}
  .hero img {{
    width: var(--hero-w); max-width: 92vw; height: auto;
    display:block; margin: 0 auto var(--hero-logo-mb);
    filter: drop-shadow(0 6px 16px rgba(0,0,0,.10));
  }}
  .hero .tagline {{
    font-size: var(--hero-tag-fs);
    font-weight: var(--hero-tag-weight);
    font-style: var(--hero-tag-style);
    color: var(--hero-tag-color);
    letter-spacing:.2px;
    margin-bottom: var(--hero-block-mb);
  }}

  /* ===== GRID ===== */
  .grid {{
    display: grid;
    grid-template-columns: repeat(var(--grid-cols), var(--card-w));
    gap: var(--grid-gap);
    justify-content: center; align-items: stretch;
  }}
  @media (max-width: 1040px) {{
    .grid {{ grid-template-columns: 1fr; }}
  }}

  /* ===== CARD ===== */
  .card {{
    position: relative;
    width: var(--c-w, var(--card-w));
    border-radius: var(--c-radius, var(--card-r));
    padding: var(--c-pv, var(--card-pv)) var(--c-ph, var(--card-ph));
    background: linear-gradient(180deg, var(--c-bg-top, var(--card-bg-top)) 0%, var(--c-bg-bot, var(--card-bg-bot)) 100%);
    border: var(--c-bw, var(--card-bw)) solid var(--c-border, var(--card-border));
    box-shadow: 0 14px 32px rgba(2,20,35,.10), 0 1px 0 rgba(255,255,255,0.75) inset;
    transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease, filter .18s ease;
    text-align:center; display:flex; flex-direction:column;
    align-items:center; justify-content:flex-start;
    gap: var(--card-gap);
  }}
  .card:hover {{
    transform: translateY(-6px) scale(1.01);
    border-color: var(--card-border-hover);
    box-shadow: 0 22px 56px rgba(2,20,35,.18);
    filter: saturate(1.03);
  }}

  /* FIXED LOGO AREA → equal top spacing on all cards */
  .card .logo-wrap {{
    width: 100%;
    height: var(--logo-area-h);
    padding-top: var(--logo-top);
    padding-bottom: var(--logo-bottom);
    display:flex; align-items:center; justify-content:center;
  }}
  .card .logo-img {{
    max-width: var(--logo-max-w);
    max-height: 100%;
    width: auto; height: auto;
    object-fit: contain;
    display:block;
  }}

  .card h3 {{
    margin: var(--card-title-mt) auto var(--card-title-mb) auto; /* centered + controllable */
    font-size: var(--card-title-size);
    font-weight: var(--card-title-weight);
    color: var(--c-title-color, var(--card-title-color));
    letter-spacing: .15px;
    text-align:center;
    width: 100%;
  }}
  .card p {{
    color: var(--c-blurb-color, var(--card-blurb-color));
    font-size: var(--card-blurb-size);
    margin: var(--card-blurb-mt) auto var(--card-blurb-bm) auto; /* centered + controllable */
    text-align:center;
    width: 100%;
  }}

  .btn {{
    display:inline-block;
    margin-top: var(--btnMT);
    padding: var(--btnPV) var(--btnPH);
    border-radius: var(--btnRadius);
    border: 1px solid var(--btnBorder);
    background: linear-gradient(180deg, var(--btn1) 0%, var(--btn2) 100%);
    font-weight: var(--btnFW);
    font-size: var(--btnFS);
    letter-spacing:.3px;
    box-shadow: 0 12px 28px rgba(11,18,32,.28), inset 0 1px 0 rgba(255,255,255,.10);
    color: var(--btnText);
    text-decoration: none;
  }}
  a.btn, a.btn:link, a.btn:visited, a.btn:hover, a.btn:active, a.btn:focus {{
    color: var(--btnText) !important; text-decoration: none !important;
  }}
  .btn:hover {{ filter: brightness(1.03) saturate(1.04); transform: translateY(-1px); }}

  .footer {{ text-align:center; color:#3f4a5a; font-size:0.96em; margin-top: 8px; }}
  .footer hr {{ margin: 12px 0; border-color: rgba(0,0,0,.08); }}
</style>
""", unsafe_allow_html=True)

# ========= HERO =========
hero_html = img_tag(hero["logo"], "Company Logo")
st.markdown(
    f"""
    <div class="hero">
      {hero_html}
      <div class="tagline">{escape(hero["tagline"])}</div>
    </div>
    """,
    unsafe_allow_html=True,
)

# ========= Cards =========
def build_card_vars(style: Dict[str, Any]) -> str:
    s = []
    if "width"        in style: s.append(f"--c-w:{int(style['width'])}px")
    if "radius"       in style: s.append(f"--c-radius:{int(style['radius'])}px")
    if "pad_v"        in style: s.append(f"--c-pv:{int(style['pad_v'])}px")
    if "pad_h"        in style: s.append(f"--c-ph:{int(style['pad_h'])}px")
    if "bg_top"       in style: s.append(f"--c-bg-top:{style['bg_top']}")
    if "bg_bot"       in style: s.append(f"--c-bg-bot:{style['bg_bot']}")   # ← FIXED QUOTES
    if "border"       in style: s.append(f"--c-border:{style['border']}")
    if "border_width" in style: s.append(f"--c-bw:{int(style['border_width'])}px")
    if "title_color"  in style: s.append(f"--c-title-color:{style['title_color']}")
    if "title_fs"     in style: s.append(f"--c-title-fs:{int(style['title_fs'])}px")
    if "blurb_color"  in style: s.append(f"--c-blurb-color:{style['blurb_color']}")
    if "blurb_fs"     in style: s.append(f"--c-blurb-fs:{int(style['blurb_fs'])}px")
    return "; ".join(s)

def app_card(card_cfg: Dict[str, Any]) -> str:
    style = card_cfg.get("style", {})
    vars_inline = build_card_vars(style)
    icon_html = img_tag(card_cfg.get("icon"), "logo", cls="logo-img") if card_cfg.get("icon") and card_cfg["icon"].exists() else ""
    target = "_self"
    return (
        f"<div class='card' style='{vars_inline}'>"
        + f"<div class='logo-wrap'>{icon_html}</div>"
        + f"<h3>{escape(card_cfg['title'])}</h3>"
        + f"<p>{escape(card_cfg['blurb'])}</p>"
        + f"<a class='btn' href='{escape(card_cfg.get('url', '#'))}' target='{target}' rel='noopener'>Explore</a>"
        + "</div>"
    )

st.markdown("<div class='grid'>" + "".join(app_card(c) for c in CARDS) + "</div>", unsafe_allow_html=True)

# ========= Footer =========
st.markdown(
    """
    <hr>
    <div class='footer'>
        © 2025 Smart Thinking AI-Solutions Team. All rights reserved.<br>
        Website: <a href="https://smartthinking.com.sa" target="_blank" rel="noopener noreferrer">smartthinking.com.sa</a>
    </div>
    """,
    unsafe_allow_html=True,
)